{"title":"Engine Valve Springs and Retainers","description":null,"products":[{"product_id":"bc0600-brian-crower-spring-and-titanium-retainers-subaru-wrx-sti-ej205-ej257-2002-2021","title":"Brian Crower Spring and Titanium Retainers Subaru WRX \/ STI EJ205\/EJ257 2002-2021","description":"Part #: BC0600\u003cbr\u003e \u003cbr\u003e\u003cp\u003eDesigned for high rpm, Brian Crower valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. It is recommended that you upgrade valve springs whenever you change cams. Brian Crower valve train components are a great choice for your STI - they are top quality at an unbeatable price! Kit includes 16 single coil valve springs and 16 titanium retainers.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e Spring Pressure:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeat: 1.420(in) @ 60 lbs, Open: 1.000(in) @ 160 lbs, Coil Bind: 0.860(in)\u003c\/li\u003e\n\u003cli\u003eNo machine work required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number: BC0600\u003c\/strong\u003e\u003c\/p\u003e \n\n","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":44806332371,"sku":"brcBC0600","price":263.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Brian-Crower-Spring-and-Titanium-Retainers-Subaru-WRX-STI-EJ205EJ257-2002-2021.jpg?v=1744196223"},{"product_id":"gsc5039-gsc-power-division-beehive-valve-springs-mitsubishi-evo-7-8-9","title":"GSC Stage 1 Springs Set Uses factory spring seat and retainer Beehive Valve Springs Mitsubishi EVO 7 \/ 8 \/ 9 | 5039","description":"\u003cp\u003e\u003cstrong\u003eStage 1 Beehive Springs:\u003c\/strong\u003e\u003cbr\u003eSingle Beehive valve spring set uses the factory spring seat and the factory retainer. This is a great option for those wanting to run our S1 or S2 camshafts on a street application, or anyone wanting to run more than 11mm of lift on the intake and 10.6mm on the exhaust. RPM limit 9,000\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStage 2 Beehive Springs:\u003c\/strong\u003e\u003cbr\u003eSingle Beehive valve spring set, includes new 4340 Chro-molly spring seats and Titanium Retainer set. This kit is capable of 11000+ RPMS, with as much as 12.5mm of lift. This is a must have for anyone pushing the limits. If you have had problems with valve float or throwing rocker arms this is the spring set that will cure your problems.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFITMENT: Evo 7-9 Stage 1 spring set. Evo 1-9 Stage 2 spring set.\u003c\/strong\u003e\u003c\/p\u003e \n\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":44809961683,"sku":"gsc5039","price":216.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/GSC-Stage-1-Springs-Set-Uses-factory-spring-seat-and-retainer-Beehive-Valve-Springs-Mitsubishi-EVO-7-8-9-5039.jpg?v=1762055268"},{"product_id":"5043-gsc-power-division-beehive-spring-titanium-retainer-kit-subaru-wrx-sti-ej257-2004-2021","title":"GSC Power Division Beehive Spring \u0026 Titanium Retainer Kit Subaru WRX \/ STI EJ257 2004-2021","description":"Part #: 5043\u003cbr\u003e \u003cbr\u003e\u003cp\u003e\u003cspan id=\"internal-source-marker_0.6235353618697861\"\u003eGSC Power-Division Beehive springs feature some of the most impressive manufacturing techniques in the industry. Our beehive spring uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. What this means to you is our spring has the highest level of spring load retention while still maintaining good fatigue threw out the life of the spring. Only the best materials go into the GSC Power-Division Beehive valve spring. Each batch is scrutinized for tensile strength properties, ductility, inclusion content, and fatigue toughness.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe beehive valve spring shape has become the buzz lately. Some have inquired as to the benefits of a beehive spring vs the dual springs that are sold by others. While some might find that the beehive spring design is new it has been used commonly in many OE engines as well as in all of the NASCAR and F1 engines of today. Why? The beehive shape is more stable than standard single or dual cylindrical springs. The beehive design which incorporates an ovate wire is more than capable of the performance demands that were previously only matched by a Dual Springs. With the smaller and lighter retainer used on the beehive valve spring allow for higher RPM and more valve control. So beehive valve springs, with there lighter weight retainers allow for engine's to rev quicker and maintain a more stable valve motion than the traditional cylindrical springs of yesteryear.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eBeehive Spring Benefits:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRev faster\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLighter components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore durable design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLess stress on valvetrain components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLower spring frequency for more precise valve control.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore valve control equals more aggressive cam profiles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNano peened for faster break in and less stressed springs\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAll of these items help to return more power for you to enjoy!\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cspan\u003eThe GSC 5043 \u003c\/span\u003e\u003cspan\u003eBeehive valve spring set, and Grade 5 Titanium retainers. This kit is capable of 9500+ RPMS, with as much as 11.5mm lift cams.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e5043 Beehive spring pressure:\u003c\/span\u003e \u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eSeat: 85 lbs @ 1.369\" (34.8mm) \u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eValve Lift\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e225lbs @ .433\" (11mm) \u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eValve Lift\u003c\/span\u003e \u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eCoil bind @ \u003c\/span\u003e.550\" (14mm) Valve Lift\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e5043 Beehive Rev and Boost range (using an S3 profile camshaft set)\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMax RPM: 9,500\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMax boost: 35psi+\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e(Use factory spring seats)\u003c\/span\u003e\u003c\/p\u003e \n\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":44815504915,"sku":"gsc5043","price":399.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/GSC-Power-Division-Beehive-Spring-Titanium-Retainer-Kit-Subaru-WRX-STI-EJ257-2004-2021.jpg?v=1743850148"},{"product_id":"bc0130-brian-crower-spring-retainer-kit-mitsubishi-evo-x-2008-2015-genesis-coupe-2-0t-2010-2013","title":"Brian Crower Spring \u0026 Retainer Kit Mitsubishi EVO X 2008-2015 \/ Genesis Coupe 2.0T 2010-2013","description":"Part #: BC0130\u003cbr\u003e \u003cbr\u003eDesigned for high rpm, Brian Crower single valve springs for the Evolution X are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Brian Crower titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. An excellent product at a great price. We recommend using these stiffer valve springs and lighter retainers when upgrading cams.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e \n\n","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":44815659155,"sku":"brcBC0130","price":284.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Brian-Crower-Spring-Retainer-Kit-Mitsubishi-EVO-X-2008-2015-Genesis-Coupe-2_0T-2010-2013.jpg?v=1744107823"},{"product_id":"5042-gsc-beehive-valve-springs-retainers-mitsubishi-evolution-x-2008-2015","title":"GSC Beehive Valve Springs \u0026 Retainers Mitsubishi Evolution X 2008-2015","description":"Part #: 5042\u003cbr\u003e \u003cbr\u003e\u003cp\u003eGSC Beehive springs for the Mitsubishi Evolution X feature some of the most impressive manufacturing techniques in the industry. GSC beehive spring uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. This gives the springs the highest level of spring load retention while still maintaining good fatigue throughout the life of the spring. The retainer side of the valve springs have a smaller diameter to greatly reduce coil spring surging and improve valve control even at extreme RPM levels. Each new design is tested to 9,000RPMS so you can rest assure that you have the best possible valve spring set available on the market. Titanium retainers are included.\u003cbr\u003e\u003cbr\u003eNote:\u003cbr\u003eIncludes 16 valve springs and retainers.\u003cbr\u003eFactory seats are resused.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \n\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":44815672531,"sku":"gsc5042","price":399.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/GSC-Beehive-Valve-Springs-Retainers-Mitsubishi-Evolution-X-2008-2015.jpg?v=1743850152"},{"product_id":"bc0100-brian-crower-valvesprings-and-retainer-set-mitsubishi-evo-8-evo-9-2003-2006-eclipse-1990-1999","title":"Brian Crower Valvesprings and Retainer Set Mitsubishi EVO 8 \/ EVO 9 2003-2006 \/ Eclipse 1990-1999","description":"Part #: BC0100\u003cbr\u003e \u003cbr\u003eDesigned for high rpm, Brian Crower valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Brian Crower titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. An excellent product at a great price. We recommend using valve springs and retainers when upgrading cams.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePart Number: BC0100 (16 Springs, 16 Retainers)\u003c\/b\u003e \n\n","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":44815904851,"sku":"brcBC0100","price":284.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Brian-Crower-Valvesprings-and-Retainer-Set-Mitsubishi-EVO-8-EVO-9-2003-2006-Eclipse-1990-1999.jpg?v=1744286925"},{"product_id":"brian-crower-dual-spring-titanium-retainer-kit-w-seats-honda-civic-si-2006-2011-bc0040","title":"Brian Crower Dual Spring \u0026 Titanium Retainer Kit w\/Seats Honda Civic Si 2006-2011 | BC0040","description":"\u003cp data-start=\"154\" data-end=\"643\"\u003eThe \u003cstrong data-start=\"158\" data-end=\"229\"\u003eBrian Crower BC0040 Dual Valve Spring, Titanium Retainer \u0026amp; Seat Kit\u003c\/strong\u003e is engineered for \u003cstrong data-start=\"248\" data-end=\"298\"\u003ehigh-performance Honda and Acura engine builds\u003c\/strong\u003e that require superior valvetrain stability at elevated RPM levels. Designed specifically for \u003cstrong data-start=\"392\" data-end=\"430\"\u003eK-series and F-series applications\u003c\/strong\u003e, this kit combines BC’s proven \u003cstrong data-start=\"462\" data-end=\"484\"\u003edual valve springs\u003c\/strong\u003e, lightweight \u003cstrong data-start=\"498\" data-end=\"520\"\u003etitanium retainers\u003c\/strong\u003e, and hardened spring seats to support aggressive camshafts, forced induction, and high-revving naturally aspirated setups.\u003c\/p\u003e\n\u003cp data-start=\"645\" data-end=\"888\"\u003eManufactured using premium PAC Racing springs and precision-machined titanium retainers, the BC0040 kit is a popular choice for enthusiasts building serious street, drag, road race, or time attack engines. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"890\" data-end=\"893\"\u003e\n\u003ch2 data-section-id=\"1pi78xj\" data-start=\"895\" data-end=\"925\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"898\" data-end=\"925\"\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"926\" data-end=\"1409\"\u003e\n\u003cli data-section-id=\"1y10oku\" data-start=\"926\" data-end=\"1000\"\u003eComplete \u003cstrong data-start=\"937\" data-end=\"998\"\u003edual valve spring, titanium retainer, and spring seat kit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1alinvp\" data-start=\"1001\" data-end=\"1067\"\u003eDesigned for \u003cstrong data-start=\"1016\" data-end=\"1065\"\u003ehigh-RPM and aggressive camshaft applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"k95jdp\" data-start=\"1068\" data-end=\"1135\"\u003eLightweight \u003cstrong data-start=\"1082\" data-end=\"1110\"\u003e6AL4V titanium retainers\u003c\/strong\u003e reduce valvetrain mass\u003c\/li\u003e\n\u003cli data-section-id=\"1pz3ycq\" data-start=\"1136\" data-end=\"1194\"\u003ePremium PAC Racing chrome silicone alloy valve springs\u003c\/li\u003e\n\u003cli data-section-id=\"1k5wiib\" data-start=\"1195\" data-end=\"1238\"\u003eIncreased valve control at elevated RPM\u003c\/li\u003e\n\u003cli data-section-id=\"h87164\" data-start=\"1239\" data-end=\"1310\"\u003eSupports turbocharged, supercharged, and naturally aspirated builds\u003c\/li\u003e\n\u003cli data-section-id=\"65s5db\" data-start=\"1311\" data-end=\"1360\"\u003eNo machine work required in most applications\u003c\/li\u003e\n\u003cli data-section-id=\"10wng0k\" data-start=\"1361\" data-end=\"1409\"\u003eIdeal for performance street and race builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1411\" data-end=\"1414\"\u003e\n\u003ch2 data-section-id=\"id1bjs\" data-start=\"1416\" data-end=\"1447\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1419\" data-end=\"1447\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1448\" data-end=\"1787\"\u003e\n\u003cli data-section-id=\"8wtlq2\" data-start=\"1448\" data-end=\"1493\"\u003eSpring Type: \u003cstrong data-start=\"1463\" data-end=\"1491\"\u003eBC1040 Dual Valve Spring\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"b0jn83\" data-start=\"1494\" data-end=\"1521\"\u003eFree Length: \u003cstrong data-start=\"1509\" data-end=\"1519\"\u003e2.025\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17dzd1c\" data-start=\"1522\" data-end=\"1560\"\u003eSeat Pressure: \u003cstrong data-start=\"1539\" data-end=\"1558\"\u003e80 lbs @ 1.590\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13k2ddw\" data-start=\"1561\" data-end=\"1600\"\u003eOpen Pressure: \u003cstrong data-start=\"1578\" data-end=\"1598\"\u003e250 lbs @ 1.110\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cx073f\" data-start=\"1601\" data-end=\"1633\"\u003eCoil Bind Height: \u003cstrong data-start=\"1621\" data-end=\"1631\"\u003e1.030\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ei7pbb\" data-start=\"1634\" data-end=\"1676\"\u003eRetainer: \u003cstrong data-start=\"1646\" data-end=\"1674\"\u003eBC2010 Titanium Retainer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11wpw3y\" data-start=\"1677\" data-end=\"1704\"\u003eSpring Seat: \u003cstrong data-start=\"1692\" data-end=\"1702\"\u003eBC2904\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9ygzl\" data-start=\"1705\" data-end=\"1787\"\u003eMaximum Net Cam Lift: \u003cstrong data-start=\"1729\" data-end=\"1749\"\u003e0.550\" \/ 13.97mm\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2009\" data-end=\"2012\"\u003e\n\u003ch2 data-section-id=\"wimzy2\" data-start=\"2014\" data-end=\"2039\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2017\" data-end=\"2039\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2040\" data-end=\"2426\"\u003e\n\u003cli data-section-id=\"zhe1vw\" data-start=\"2040\" data-end=\"2090\"\u003eProfessional installation strongly recommended\u003c\/li\u003e\n\u003cli data-section-id=\"14pgn7b\" data-start=\"2091\" data-end=\"2164\"\u003eProper installed height and valve clearance should always be verified\u003c\/li\u003e\n\u003cli data-section-id=\"v97l4g\" data-start=\"2165\" data-end=\"2315\"\u003eLate-model cylinder heads (2005+) may require \u003cstrong data-start=\"2213\" data-end=\"2231\"\u003eBC2940 keepers\u003c\/strong\u003e due to Honda keeper groove angle revisions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"l6tyak\" data-start=\"2316\" data-end=\"2366\"\u003eRecommended for upgraded camshaft applications\u003c\/li\u003e\n\u003cli data-section-id=\"1lpabhz\" data-start=\"2367\" data-end=\"2426\"\u003eDesigned for high-RPM use and performance engine builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2428\" data-end=\"2431\"\u003e\n\u003ch2 data-section-id=\"f5g0wo\" data-start=\"2433\" data-end=\"2468\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2436\" data-end=\"2468\"\u003eTitanium Retainer Advantages\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2469\" data-end=\"2525\"\u003eCompared to steel retainers, titanium retainers provide:\u003c\/p\u003e\n\u003cul data-start=\"2526\" data-end=\"2695\"\u003e\n\u003cli data-section-id=\"jck0ck\" data-start=\"2526\" data-end=\"2555\"\u003eReduced valvetrain weight\u003c\/li\u003e\n\u003cli data-section-id=\"7tymtc\" data-start=\"2556\" data-end=\"2593\"\u003eFaster valve response at high RPM\u003c\/li\u003e\n\u003cli data-section-id=\"1b4avrq\" data-start=\"2594\" data-end=\"2632\"\u003eImproved resistance to valve float\u003c\/li\u003e\n\u003cli data-section-id=\"1ne53y9\" data-start=\"2633\" data-end=\"2695\"\u003eBetter performance in racing and high-revving applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2697\" data-end=\"2876\"\u003eMany enthusiasts choose titanium retainer setups when building engines designed for aggressive cam profiles and sustained high-RPM operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"2878\" data-end=\"2881\"\u003e\n\u003ch2 data-section-id=\"1xdqbu3\" data-start=\"2883\" data-end=\"2916\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2886\" data-end=\"2916\"\u003eWhy Choose the BC0040 Kit?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2917\" data-end=\"3004\"\u003eThe BC0040 is one of the most popular K-series valvetrain upgrades because it balances:\u003c\/p\u003e\n\u003cul data-start=\"3005\" data-end=\"3161\"\u003e\n\u003cli data-section-id=\"qlujck\" data-start=\"3005\" data-end=\"3029\"\u003eHigh-RPM reliability\u003c\/li\u003e\n\u003cli data-section-id=\"18n037q\" data-start=\"3030\" data-end=\"3068\"\u003eLightweight valvetrain performance\u003c\/li\u003e\n\u003cli data-section-id=\"niek2k\" data-start=\"3069\" data-end=\"3112\"\u003eCompatibility with aggressive camshafts\u003c\/li\u003e\n\u003cli data-section-id=\"19d3qp7\" data-start=\"3113\" data-end=\"3161\"\u003eProven durability in competitive motorsports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3163\" data-end=\"3324\"\u003eIt’s commonly used in turbocharged Civic Si builds, all-motor K-series race engines, and high-performance Honda street cars pushing beyond OEM valvetrain limits.\u003c\/p\u003e","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":44831318291,"sku":"brcBC0040","price":488.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/Brian-Crower-Dual-Spring-Steel-Retainer-Kit-wo-Seats-Honda-Civic-Si-2006-2011-BC0040SX.jpg?v=1785233983"},{"product_id":"bc0040s-brian-crower-dual-spring-steel-retainer-kit-w-seats-honda-civic-si-2006-2011","title":"Brian Crower Dual Spring \u0026 Steel Retainer Kit w\/Seats Honda Civic Si 2006-2011 | BC0040S","description":"\u003cp data-start=\"146\" data-end=\"613\"\u003eThe \u003cstrong data-start=\"150\" data-end=\"213\"\u003eBrian Crower BC0040S Dual Valve Spring \u0026amp; Steel Retainer Kit\u003c\/strong\u003e is designed for \u003cstrong data-start=\"230\" data-end=\"280\"\u003ehigh-performance Honda and Acura engine builds\u003c\/strong\u003e requiring increased valvetrain stability, improved valve control, and long-term reliability under high RPM conditions. Utilizing \u003cstrong data-start=\"410\" data-end=\"439\"\u003eBC1040 dual valve springs\u003c\/strong\u003e paired with durable \u003cstrong data-start=\"460\" data-end=\"479\"\u003esteel retainers\u003c\/strong\u003e, this kit is ideal for street-driven turbo, supercharged, and naturally aspirated applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"615\" data-end=\"885\"\u003eUnlike titanium retainer kits designed primarily for lightweight race applications, the \u003cstrong data-start=\"703\" data-end=\"743\"\u003eBC0040S steel retainer configuration\u003c\/strong\u003e is favored for high-mileage and endurance-focused builds where durability and longevity are priorities. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"887\" data-end=\"890\"\u003e\n\u003ch2 data-section-id=\"1pi78xj\" data-start=\"892\" data-end=\"922\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"895\" data-end=\"922\"\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"923\" data-end=\"1393\"\u003e\n\u003cli data-section-id=\"12xrdkw\" data-start=\"923\" data-end=\"980\"\u003eComplete \u003cstrong data-start=\"934\" data-end=\"978\"\u003edual valve spring and steel retainer kit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ktk57l\" data-start=\"981\" data-end=\"1031\"\u003eDesigned for \u003cstrong data-start=\"996\" data-end=\"1029\"\u003ehigh-RPM valvetrain stability\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11jbog8\" data-start=\"1032\" data-end=\"1091\"\u003eIdeal for aggressive camshafts and boosted applications\u003c\/li\u003e\n\u003cli data-section-id=\"sytdyk\" data-start=\"1092\" data-end=\"1147\"\u003eSteel retainers offer improved long-term durability\u003c\/li\u003e\n\u003cli data-section-id=\"1qbz650\" data-start=\"1148\" data-end=\"1210\"\u003eHigh-grade \u003cstrong data-start=\"1161\" data-end=\"1194\"\u003echrome silicone alloy springs\u003c\/strong\u003e by PAC Racing\u003c\/li\u003e\n\u003cli data-section-id=\"1uosb1h\" data-start=\"1211\" data-end=\"1253\"\u003eSupports higher lift camshaft profiles\u003c\/li\u003e\n\u003cli data-section-id=\"10gr5jm\" data-start=\"1254\" data-end=\"1306\"\u003eExcellent choice for street and endurance builds\u003c\/li\u003e\n\u003cli data-section-id=\"hy2evm\" data-start=\"1307\" data-end=\"1393\"\u003eNo machine work required in most applications \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1395\" data-end=\"1398\"\u003e\n\u003ch2 data-section-id=\"id1bjs\" data-start=\"1400\" data-end=\"1431\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1403\" data-end=\"1431\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1432\" data-end=\"1769\"\u003e\n\u003cli data-section-id=\"8wtlq2\" data-start=\"1432\" data-end=\"1477\"\u003eSpring Type: \u003cstrong data-start=\"1447\" data-end=\"1475\"\u003eBC1040 Dual Valve Spring\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"b0jn83\" data-start=\"1478\" data-end=\"1505\"\u003eFree Length: \u003cstrong data-start=\"1493\" data-end=\"1503\"\u003e2.025\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17dzd1c\" data-start=\"1506\" data-end=\"1544\"\u003eSeat Pressure: \u003cstrong data-start=\"1523\" data-end=\"1542\"\u003e80 lbs @ 1.590\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13k2ddw\" data-start=\"1545\" data-end=\"1584\"\u003eOpen Pressure: \u003cstrong data-start=\"1562\" data-end=\"1582\"\u003e250 lbs @ 1.110\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cx073f\" data-start=\"1585\" data-end=\"1617\"\u003eCoil Bind Height: \u003cstrong data-start=\"1605\" data-end=\"1615\"\u003e1.030\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2for0a\" data-start=\"1618\" data-end=\"1657\"\u003eRetainer: \u003cstrong data-start=\"1630\" data-end=\"1655\"\u003eBC2011 Steel Retainer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11wpw3y\" data-start=\"1658\" data-end=\"1685\"\u003eSpring Seat: \u003cstrong data-start=\"1673\" data-end=\"1683\"\u003eBC2904\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"v6uyw1\" data-start=\"1686\" data-end=\"1769\"\u003eMaximum Net Cam Lift: \u003cstrong data-start=\"1710\" data-end=\"1730\"\u003e0.550\" \/ 13.97mm\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2034\" data-end=\"2037\"\u003e\n\u003ch2 data-section-id=\"wimzy2\" data-start=\"2039\" data-end=\"2064\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2042\" data-end=\"2064\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2065\" data-end=\"2380\"\u003e\n\u003cli data-section-id=\"l6tyak\" data-start=\"2065\" data-end=\"2115\"\u003eRecommended for upgraded camshaft applications\u003c\/li\u003e\n\u003cli data-section-id=\"zhe1vw\" data-start=\"2116\" data-end=\"2166\"\u003eProfessional installation strongly recommended\u003c\/li\u003e\n\u003cli data-section-id=\"1p6yubh\" data-start=\"2167\" data-end=\"2233\"\u003eValve clearance and installed height should always be verified\u003c\/li\u003e\n\u003cli data-section-id=\"1g23qg5\" data-start=\"2234\" data-end=\"2380\"\u003eLate-model cylinder heads (2005+) may require \u003cstrong data-start=\"2282\" data-end=\"2300\"\u003eBC2940 keepers\u003c\/strong\u003e due to Honda keeper groove angle changes. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2382\" data-end=\"2385\"\u003e\n\u003ch2 data-section-id=\"1piy78c\" data-start=\"2387\" data-end=\"2431\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2390\" data-end=\"2431\"\u003eSteel Retainers vs Titanium Retainers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2432\" data-end=\"2487\"\u003eCompared to titanium retainer kits, the BC0040S offers:\u003c\/p\u003e\n\u003cul data-start=\"2488\" data-end=\"2719\"\u003e\n\u003cli data-section-id=\"7lpeum\" data-start=\"2488\" data-end=\"2546\"\u003eBetter long-term durability for street-driven vehicles\u003c\/li\u003e\n\u003cli data-section-id=\"1s1zdx\" data-start=\"2547\" data-end=\"2600\"\u003eImproved reliability in high-mileage applications\u003c\/li\u003e\n\u003cli data-section-id=\"114f1nm\" data-start=\"2601\" data-end=\"2663\"\u003eSlightly heavier valvetrain weight but increased longevity\u003c\/li\u003e\n\u003cli data-section-id=\"ih8gup\" data-start=\"2664\" data-end=\"2719\"\u003eBetter suited for endurance and daily-driven setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2721\" data-end=\"2910\"\u003eMany enthusiasts and engine builders prefer steel retainers for engines expected to see long-term street use rather than dedicated race-only operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"2912\" data-end=\"2915\"\u003e\n\u003ch2 data-section-id=\"t2nazc\" data-start=\"2917\" data-end=\"2951\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2920\" data-end=\"2951\"\u003eWhy Choose the BC0040S Kit?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2952\" data-end=\"3004\"\u003eThe BC0040S is a popular choice because it balances:\u003c\/p\u003e\n\u003cul data-start=\"3005\" data-end=\"3161\"\u003e\n\u003cli data-section-id=\"v52xn0\" data-start=\"3005\" data-end=\"3040\"\u003eHigh-RPM performance capability\u003c\/li\u003e\n\u003cli data-section-id=\"gfj8ky\" data-start=\"3041\" data-end=\"3079\"\u003eReliable valve control under boost\u003c\/li\u003e\n\u003cli data-section-id=\"ey2n29\" data-start=\"3080\" data-end=\"3111\"\u003eLong-term street durability\u003c\/li\u003e\n\u003cli data-section-id=\"1odnq63\" data-start=\"3112\" data-end=\"3161\"\u003eCompatibility with aggressive camshaft setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3163\" data-end=\"3279\"\u003eIt’s an excellent solution for Honda enthusiasts building a dependable high-performance K-series or F-series engine.\u003c\/p\u003e","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":44831327443,"sku":"brcBC0040S","price":402.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/Brian-Crower-Dual-Spring-Steel-Retainer-Kit-wo-Seats-Honda-Civic-Si-2006-2011-BC0040SX.jpg?v=1785233983"},{"product_id":"brian-crower-dual-spring-steel-retainer-kit-w-o-seats-honda-civic-si-2006-2011-bc0040sx","title":"Brian Crower Dual Spring \u0026 Steel Retainer Kit w\/o Seats Honda Civic Si 2006-2011 | BC0040SX","description":"\u003cp data-start=\"147\" data-end=\"591\"\u003eThe \u003cstrong data-start=\"151\" data-end=\"215\"\u003eBrian Crower BC0040SX Dual Valve Spring \u0026amp; Steel Retainer Kit\u003c\/strong\u003e is engineered for \u003cstrong data-start=\"234\" data-end=\"284\"\u003ehigh-performance Honda and Acura engine builds\u003c\/strong\u003e that demand improved valvetrain stability at elevated RPM levels. Designed for K-series and F-series engines, this kit combines \u003cstrong data-start=\"413\" data-end=\"442\"\u003eBC1040 dual valve springs\u003c\/strong\u003e with durable \u003cstrong data-start=\"456\" data-end=\"475\"\u003esteel retainers\u003c\/strong\u003e to provide reliable valve control for aggressive camshafts, forced induction setups, and high-revving applications.\u003c\/p\u003e\n\u003cp data-start=\"593\" data-end=\"886\"\u003eUnlike lightweight titanium retainers commonly used in race-only builds, the \u003cstrong data-start=\"670\" data-end=\"790\"\u003esteel retainers in the BC0040SX kit are ideal for high-mileage street cars and daily-driven performance applications\u003c\/strong\u003e, offering increased long-term durability and reliability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"888\" data-end=\"891\"\u003e\n\u003ch2 data-section-id=\"1pi78xj\" data-start=\"893\" data-end=\"923\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"896\" data-end=\"923\"\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"924\" data-end=\"1408\"\u003e\n\u003cli data-section-id=\"12xrdkw\" data-start=\"924\" data-end=\"981\"\u003eComplete \u003cstrong data-start=\"935\" data-end=\"979\"\u003edual valve spring and steel retainer kit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"qoq2el\" data-start=\"982\" data-end=\"1039\"\u003eDesigned for \u003cstrong data-start=\"997\" data-end=\"1037\"\u003ehigh-RPM stability and valve control\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"16n94hl\" data-start=\"1040\" data-end=\"1086\"\u003eRecommended for aggressive camshaft setups\u003c\/li\u003e\n\u003cli data-section-id=\"1b00ovg\" data-start=\"1087\" data-end=\"1160\"\u003eSteel retainers provide improved longevity for street-driven vehicles\u003c\/li\u003e\n\u003cli data-section-id=\"8xm7rb\" data-start=\"1161\" data-end=\"1225\"\u003eManufactured using premium \u003cstrong data-start=\"1190\" data-end=\"1223\"\u003echrome silicone alloy springs\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"65s5db\" data-start=\"1226\" data-end=\"1275\"\u003eNo machine work required in most applications\u003c\/li\u003e\n\u003cli data-section-id=\"985wa9\" data-start=\"1276\" data-end=\"1335\"\u003eSupports increased valve lift and engine RPM capability\u003c\/li\u003e\n\u003cli data-section-id=\"15tmaby\" data-start=\"1336\" data-end=\"1408\"\u003eIdeal for turbocharged, supercharged, and naturally aspirated builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1410\" data-end=\"1413\"\u003e\n\u003ch2 data-section-id=\"id1bjs\" data-start=\"1415\" data-end=\"1446\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1418\" data-end=\"1446\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1447\" data-end=\"1773\"\u003e\n\u003cli data-section-id=\"1k29xrm\" data-start=\"1447\" data-end=\"1486\"\u003eSpring Type: \u003cstrong data-start=\"1462\" data-end=\"1484\"\u003eBC1040 Dual Spring\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17dzd1c\" data-start=\"1487\" data-end=\"1525\"\u003eSeat Pressure: \u003cstrong data-start=\"1504\" data-end=\"1523\"\u003e80 lbs @ 1.590\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13k2ddw\" data-start=\"1526\" data-end=\"1565\"\u003eOpen Pressure: \u003cstrong data-start=\"1543\" data-end=\"1563\"\u003e250 lbs @ 1.110\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cx073f\" data-start=\"1566\" data-end=\"1598\"\u003eCoil Bind Height: \u003cstrong data-start=\"1586\" data-end=\"1596\"\u003e1.030\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jtmu1o\" data-start=\"1599\" data-end=\"1645\"\u003eMaximum Net Cam Lift: \u003cstrong data-start=\"1623\" data-end=\"1643\"\u003e0.550\" \/ 13.97mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"k4cdoj\" data-start=\"1646\" data-end=\"1696\"\u003eRetainers Included: \u003cstrong data-start=\"1668\" data-end=\"1694\"\u003eBC2010 Steel Retainers\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5ngawg\" data-start=\"1697\" data-end=\"1773\"\u003eSpring Seat: OEM-style configuration\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2008\" data-end=\"2011\"\u003e\n\u003ch2 data-section-id=\"18qkx3w\" data-start=\"2013\" data-end=\"2048\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2016\" data-end=\"2048\"\u003eImportant Installation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2049\" data-end=\"2457\"\u003e\n\u003cli data-section-id=\"l6tyak\" data-start=\"2049\" data-end=\"2099\"\u003eRecommended for upgraded camshaft applications\u003c\/li\u003e\n\u003cli data-section-id=\"qidk6j\" data-start=\"2100\" data-end=\"2247\"\u003eLate-model cylinder heads (2005+) may require \u003cstrong data-start=\"2148\" data-end=\"2166\"\u003eBC2940 keepers\u003c\/strong\u003e due to Honda keeper groove angle changes \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"zhe1vw\" data-start=\"2248\" data-end=\"2298\"\u003eProfessional installation strongly recommended\u003c\/li\u003e\n\u003cli data-section-id=\"aixel3\" data-start=\"2299\" data-end=\"2372\"\u003eProper valve clearance and installed height should always be verified\u003c\/li\u003e\n\u003cli data-section-id=\"1w8rwjh\" data-start=\"2373\" data-end=\"2457\"\u003eSeats are not included with the BC0040SX kit \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2459\" data-end=\"2462\"\u003e\n\u003ch2 data-section-id=\"zzh3ts\" data-start=\"2464\" data-end=\"2499\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2467\" data-end=\"2499\"\u003eWhy Choose the BC0040SX Kit?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2500\" data-end=\"2575\"\u003eThis kit is especially popular among Honda enthusiasts because it balances:\u003c\/p\u003e\n\u003cul data-start=\"2576\" data-end=\"2668\"\u003e\n\u003cli data-section-id=\"v52xn0\" data-start=\"2576\" data-end=\"2611\"\u003eHigh-RPM performance capability\u003c\/li\u003e\n\u003cli data-section-id=\"8k7mow\" data-start=\"2612\" data-end=\"2636\"\u003eLong-term durability\u003c\/li\u003e\n\u003cli data-section-id=\"14q1nw3\" data-start=\"2637\" data-end=\"2668\"\u003eStreet-friendly reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2670\" data-end=\"2867\"\u003eFor daily-driven turbo or all-motor K-series builds, the steel retainers offer excellent longevity compared to titanium retainers in long-mileage applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":44831327891,"sku":"brcBC0040SX","price":339.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/Brian-Crower-Dual-Spring-Steel-Retainer-Kit-wo-Seats-Honda-Civic-Si-2006-2011-BC0040SX.jpg?v=1785233983"},{"product_id":"5743-gsc-power-division-valve-spring-kit-subaru-wrx-sti-ej-turbo-series-2002-2021","title":"GSC Power Division Valve Spring Kit Subaru WRX \/ STI EJ Turbo Series 2002-2021","description":"Part #: 5743\u003cbr\u003e \u003cbr\u003e\u003cp\u003eThese springs are the same quality and consistency as their popular beehive spring kits. The 5743 includes a nano-peened AS50 round wire that will handle 8200 RPM and boost levels up to 32 PSI on S1 or S2 profile cams. Strict quality control on the springs and the CNC machined Titanium retainers allow for excellent reliability and value. \u003cbr\u003e\u003cbr\u003e Sold as a set of 16 \u003cbr\u003e\u003cbr\u003e 75lbs @ 1.376\" \u003cbr\u003e\u003cbr\u003e 195lbs @ .433\" lift \u003cbr\u003e\u003cbr\u003e Part #: 5743 - Valve Spring Kit \u003cbr\u003e\u003cbr\u003e Application: Subaru EJ turbo series engines\u003c\/p\u003e \n\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":44847846483,"sku":"gsc5743","price":282.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/GSC-Power-Division-Valve-Spring-Kit-Subaru-WRX-STI-EJ-Turbo-Series-2002-2021.jpg?v=1743763734"},{"product_id":"s10071-ferrea-drag-racing-dual-valve-spring-subaru-wrx-ej20-qty-16","title":"Ferrea Drag Racing Dual Valve Spring Subaru WRX EJ20 (QTY 16)","description":"Part #: S10071\u003cbr\u003e \u003cbr\u003e\u003cp\u003eSUBARU IMPREZA WRX (2001 - 2005) DUAL VALVE SPRING \u003cbr\u003e\u003cbr\u003e EJ20, This Spring requires Ferrea Titanium Retainer # E11043 and Ferrea Spring Seat Locator # SL1034 (Discard OEM Spring Seat Locator) \u003cbr\u003e\u003cbr\u003eType\/Material\/Application: Dual Spring - Special Alloy - Turbo - Drag Racing \u003cbr\u003e\u003cbr\u003eOutside Diameter: 20.8 mm\/28 mm\u003c\/p\u003e\n\u003cp\u003ePrice is for a quantity of 16\u003c\/p\u003e \n\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44848001683,"sku":"ferS10071","price":485.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Drag-Racing-Dual-Valve-Spring-Subaru-WRX-EJ20-QTY-16.jpg?v=1744296071"},{"product_id":"s10072-ferrea-endurance-dual-valve-spring-subaru-wrx-ej20-qty-16","title":"Ferrea Endurance Dual Valve Spring Subaru WRX EJ20 (QTY 16)","description":"Part #: S10072\u003cbr\u003e \u003cbr\u003e\u003cp\u003eSUBARU IMPREZA WRX (2001 - 2005) DUAL VALVE SPRING \u003cbr\u003e\u003cbr\u003e EJ20, This Spring requires Ferrea Titanium Retainer # E11044 and Ferrea Spring Seat Locator # SL1034 (Discard OEM Spring Seat Locator) \u003cbr\u003e\u003cbr\u003eType\/Material\/Application: Dual Spring - Special Alloy Turbo - Endurance Spring \u003cbr\u003e\u003cbr\u003eOutside Diameter: 20.8 mm\/28 m\u003c\/p\u003e\n\u003cp\u003ePrice is for a quantity of 16.\u003c\/p\u003e \n\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44848005331,"sku":"ferS10072","price":485.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Endurance-Dual-Valve-Spring-Subaru-WRX-EJ20-QTY-16.jpg?v=1744296073"},{"product_id":"s10097-ferrea-drag-racing-dual-valve-spring-subaru-wrx-sti-ej25-2004-2021-qty-16","title":"Ferrea Drag Racing Dual Valve Spring Subaru WRX \/ STI EJ25 2004-2021 (QTY 16)","description":"Part #: S10097\u003cbr\u003e \u003cbr\u003e\u003cp\u003eSUBARU IMPREZA WRX STI DUAL VALVE SPRING \u003cbr\u003e\u003cbr\u003eThis Spring requires Ferrea Titanium Retainer # E11064 and Ferrea Spring Seat Locator # SL1051 (Discard OEM Spring Seat Locator) \u003cbr\u003e\u003cbr\u003eType\/Material\/Application: Dual Spring - Special Alloy - Turbo - Drag Racing \u003cbr\u003e\u003cbr\u003eOutside Diameter: 20.8 mm\/28 mm\u003c\/p\u003e\n\u003cp\u003ePrice is for a quantity of 16 valve springs.\u003c\/p\u003e\n\u003cp\u003eDoes not fit FA20 motors.\u003c\/p\u003e \n\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44848008659,"sku":"ferS10097","price":485.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Drag-Racing-Dual-Valve-Spring-Subaru-WRX-STI-EJ25-2004-2021-QTY-16.jpg?v=1744296074"},{"product_id":"s10098-ferrea-endurance-dual-valve-spring-subaru-wrx-sti-ej25-2004-2019-qty-16","title":"Ferrea Endurance Dual Valve Spring Subaru WRX \/ STI EJ25 2004-2019 (QTY 16)","description":"Part #: S10098\u003cbr\u003e \u003cbr\u003e\u003cp\u003eSUBARU IMPREZA WRX STI (2004 - 2017) DUAL VALVE SPRING \u003cbr\u003e(This listing is for a set of 16)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThis Spring requires Ferrea Titanium Retainer # E11065 and Ferrea Spring Seat Locator # SL1051 (Discard OEM Spring Seat Locator) \u003cbr\u003e\u003cbr\u003eType\/Material\/Application: Dual Spring - Special Alloy - Turbo - Endurance Racing \u003cbr\u003e\u003cbr\u003eOutside Diameter: 20.8 mm\/28 mm\u003c\/p\u003e\n\u003cp\u003ePrice is for a quantity of 16.\u003c\/p\u003e \n\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44848009043,"sku":"ferS10098","price":485.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Endurance-Dual-Valve-Spring-Subaru-WRX-STI-EJ25-2004-2019-QTY-16.jpg?v=1744296076"},{"product_id":"e11043-ferrea-valve-spring-titanium-retainer-subaru-wrx-ej20-qty-16","title":"Ferrea Valve Spring Titanium Retainer Subaru WRX EJ20 (QTY 16)","description":"Part #: E11043\u003cbr\u003e \u003cbr\u003eSUBARU IMPREZA WRX (2001 - 2005) TITANIUM RETAINER EJ20 \u003cbr\u003e\u003cbr\u003eValve Stem Size: 6 mm \u003cbr\u003e\u003cbr\u003eDiameter (A): 25.40 mm \u003cbr\u003e\u003cbr\u003eInn Step Diameter (C): 15.70 mm \u003cbr\u003e\u003cbr\u003eReferences: Double Spring-6 deg Pro CNC- Ferrea Valve Lock # K10061 \n\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44848009363,"sku":"ferE11043","price":344.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Valve-Spring-Titanium-Retainer-Subaru-WRX-EJ20-QTY-16.jpg?v=1744296077"},{"product_id":"e11064-ferrea-valve-spring-titanium-retainer-15-70mm-subaru-wrx-sti-ej25-2004-2021-qty-16","title":"Ferrea Valve Spring Titanium Retainer (15.70mm) Subaru WRX \/ STI EJ25 2004-2021 (QTY 16)","description":"Part #: E11064\u003cbr\u003e \u003cbr\u003e\u003cp\u003eSUBARU IMPREZA WRX STI TITANIUM RETAINERS \u003cbr\u003e\u003cbr\u003eValve Stem Size: 6 mm \u003cbr\u003e\u003cbr\u003eDiameter (A): 25.40 mm \u003cbr\u003e\u003cbr\u003eInn Step Diameter (C): 15.70 mm \u003cbr\u003e\u003cbr\u003eReferences: Double Spring-6 deg Pro CNC- Ferrea Valve Lock # K10074\u003c\/p\u003e\n\u003cp\u003eSet of 16\u003c\/p\u003e \n\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44848009619,"sku":"ferE11064","price":344.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Valve-Spring-Titanium-Retainer-15_70mm-Subaru-WRX-STI-EJ25-2004-2021-QTY-16.jpg?v=1744296079"},{"product_id":"e11065-ferrea-valve-spring-titanium-retainer-16-51mm-subaru-wrx-sti-ej25-2004-2021-qty-16","title":"Ferrea Valve Spring Titanium Retainer (16.51mm) Subaru WRX \/ STI EJ25 2004-2021 (QTY 16)","description":"Part #: E11065\u003cbr\u003e \u003cbr\u003e\u003cp\u003eSUBARU IMPREZA WRX STI (2004 - 2017) TITANIUM RETAINER \u003cbr\u003e\u003cbr\u003eValve Stem Size: 6 mm \u003cbr\u003e\u003cbr\u003eDiameter (A): 25.40 mm \u003cbr\u003e\u003cbr\u003eInn Step Diameter (C): 16.51 mm \u003cbr\u003e\u003cbr\u003eReferences: Double Spring-6 deg Pro CNC- Ferrea Valve Lock # K10074\u003c\/p\u003e \n\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44848009875,"sku":"ferE11065","price":344.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Valve-Spring-Titanium-Retainer-16_51mm-Subaru-WRX-STI-EJ25-2004-2021-QTY-16.jpg?v=1744296080"},{"product_id":"cop-512-company23-valve-spring-compressor-tool-subaru-models","title":"Company23 Valve Spring Compressor Tool Subaru Models | COP-512","description":"Part #: COP-512\u003cbr\u003e \u003cbr\u003e\n\u003cp\u003eWhen you need to remove the valve springs on your heads, you need the right tool to do it. Company23 has you covered with the Valve Spring Compressor Tool. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCustom designed to perfectly fit Subaru engines\u003c\/li\u003e\n\u003cli\u003eCompresses valve springs with the head on the bench or on the engine in the car\u003c\/li\u003e\n\u003cli\u003eAllows easy replacement of valve stem seals, valves, springs, and retainers\u003c\/li\u003e\n\u003cli\u003eWill not slip or damage head like universal clamp compressors\u003c\/li\u003e\n\u003cli\u003eRoller ball thrust bearing provides smooth operation even with uprated performance valve springs\u003c\/li\u003e\n\u003cli\u003eIncluded magnetic screwdriver makes installation and removal of valve keepers easy\u003c\/li\u003e\n\u003cli\u003eUsed in place of factory tool #498267600 and #499718000 \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWorks with:\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e02+ Subaru Impreza WRX and WRX STI with 2.0L or 2.5L DOHC Turbo engines (EJ205, EJ207, EJ255, EJ257)\u003c\/li\u003e\n\u003cli\u003e04-11 Subaru Forester XT with DOHC Turbo engines\u003c\/li\u003e\n\u003cli\u003e05-10 Subaru Legacy GT with DOHC Turbo engines\u003c\/li\u003e\n\u003cli\u003e05-10 Subaru Outback XT with DOHC Turbo engines\u003c\/li\u003e\n\u003cli\u003e05-06 Saab 9-2X Aero with DOHC Turbo engines\u003c\/li\u003e\n\u003cli\u003e04-06 Subaru Baja with DOHC Turbo engines\u003c\/li\u003e\n\u003cli\u003e96-98 2.5L DOHC Phase 1 n\/a Subaru engines\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Company23","offers":[{"title":"Default Title","offer_id":44850267283,"sku":"COP-512","price":93.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Company23-Valve-Spring-Compressor-Tool-Subaru-Models-COP-512.jpg?v=1744197262"},{"product_id":"s10084-ferrea-dual-valve-spring-2003-2007-mitsubishi-evo-8-9-qty-16","title":"Ferrea Dual Valve Spring 2003-2007 Mitsubishi EVO 8 \/ 9 (QTY 16)","description":"Part #: S10084\u003cbr\u003e \u003cbr\u003e\u003cp\u003eHarmonics or high frequency fatigue is present in all racing engines and will usually destroy the valvetrain if not controlled. Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear. Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicon steel. \u003cbr\u003e\u003cbr\u003e Our springs are heat-treated and stress relieved, which dramatically increases the spring’s life. Our valve springs provide the stability needed for high lift, high rpm racing engines, while minimizing the load loss for today’s aggressive valvetrain combinations. \u003cbr\u003e\u003cbr\u003eMITSUBISHI EVOLUTION VIII (2003 - 2007) DUAL VALVE SPRINGS 2.0L - DOHC 16 Valve (Turbo 4G63T), \u003cbr\u003e\u003cbr\u003eThis Spring requires Ferrea Titanium Retainer # E11052 and Ferrea Spring Seat Locator # SL1041. \u003cbr\u003e\u003cbr\u003eType\/Material\/Application: Dual Spring - Turbo - Special Alloy \u003cbr\u003e\u003cbr\u003eOutside Diameter: 22.85 mm\/30.45 mm \u003cbr\u003e\u003cbr\u003eInside Diam\u003c\/p\u003e\n\u003cp\u003ePrice is for a quantity of 16.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44850485075,"sku":"ferS10084","price":485.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Dual-Valve-Spring-2003-2007-Mitsubishi-EVO-8-9-QTY-16.jpg?v=1744296788"},{"product_id":"s10118-ferrea-dual-valve-spring-mitsubishi-evo-x-qty-16","title":"Ferrea Dual Valve Spring Mitsubishi EVO X (QTY 16)","description":"Part #: S10118\u003cbr\u003e \u003cbr\u003e\u003cp\u003eHarmonics or high frequency fatigue is present in all racing engines and will usually destroy the valvetrain if not controlled. Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear. Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicon steel. \u003cbr\u003e\u003cbr\u003e Our springs are heat-treated and stress relieved, which dramatically increases the spring’s life. Our valve springs provide the stability needed for high lift, high rpm racing engines, while minimizing the load loss for today’s aggressive valvetrain combinations. \u003cbr\u003e\u003cbr\u003eMITSUBISHI EVOLUTION X DUAL VALVE SPRINGS 2.0L - DOHC 16 Valve (4B11T), \u003cbr\u003e\u003cbr\u003eThis Spring requires Ferrea Titanium Retainer #E11089 and Ferrea Spring Seat Locator #SL1096 and OEM Factory supplied Spring Seat Locator. \u003cbr\u003e\u003cbr\u003eNOTE: (*)Max Net Lift is limited by the OEM Factory hat style seat\/seal locator he\u003c\/p\u003e\n\u003cp\u003ePrice is for a quantity of 16.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44850485907,"sku":"ferS10118","price":485.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Dual-Valve-Spring-Mitsubishi-EVO-X-QTY-16.jpg?v=1744296790"},{"product_id":"e11052-ferrea-titanium-retainer-2003-2007-mitsubishi-8-9-qty-16","title":"Ferrea Titanium Retainer 2003-2007 Mitsubishi 8 \/ 9 (QTY 16)","description":"Part #: E11052\u003cbr\u003e \u003cbr\u003e\u003cp\u003eFerrea’s wide range of retainers are available for Domestic,Sport Compact and Motorcycle markets. We currently offer four different types of retainers to choose from: Titanium, Lightweight Tool Steel, Steel and Aluminum Magnesium retainers, all of which are CNC machined to perfection and offer superior strength and stability. \u003cbr\u003e\u003cbr\u003eMITSUBISHI EVOLUTION VIII (2003 - 2007) TITANIUM RETAINERS 2.0L - DOHC 16 Valve (Turbo 4G63T) \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValve Stem Size: 6.5 mm\u003c\/li\u003e\n\u003cli\u003eDiameter (A): 28.57 mm\u003c\/li\u003e\n\u003cli\u003eInn Step Diameter (C): 17.35 mm\u003c\/li\u003e\n\u003cli\u003eReferences: Double Spring-6 deg Pro CNC- Ferrea Racing Springs #S10084 and Ferrea Valve Lock # K10035\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44850519635,"sku":"ferE11052","price":344.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Titanium-Retainer-2003-2007-Mitsubishi-8-9-QTY-16.jpg?v=1744296807"},{"product_id":"e20045-ferrea-steel-retainer-2003-2007-mitsubishi-8-9-qty-16","title":"Ferrea Steel Retainer 2003-2007 Mitsubishi 8 \/ 9 (QTY 16)","description":"Part #: E20045\u003cbr\u003e \u003cbr\u003e\u003cp\u003eFerrea’s wide range of retainers are available for Domestic,Sport Compact and Motorcycle markets. We currently offer four different types of retainers to choose from: Titanium, Lightweight Tool Steel, Steel and Aluminum Magnesium retainers, all of which are CNC machined to perfection and offer superior strength and stability. \u003cbr\u003e\u003cbr\u003eMITSUBISHI EVOLUTION VIII (2003 - 2007) TOOL STEEL RETAINERS 2.0L - DOHC 16 Valve (Turbo 4G63T) \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValve Stem Size: 6.5 mm\u003c\/li\u003e\n\u003cli\u003eDiameter (A): 28.19 mm\u003c\/li\u003e\n\u003cli\u003eInn Step Diameter (C): 17.35 mm\u003c\/li\u003e\n\u003cli\u003eReferences: Double Spring-6 deg Pro CNC - (16 pieces) Ferrea Racing Springs# S10084 Ferrea Valve Lock # K10035\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePrice is for a quantity of 16.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44850519891,"sku":"ferE20045","price":336.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Steel-Retainer-2003-2007-Mitsubishi-8-9-QTY-16.jpg?v=1744296808"},{"product_id":"e11089-ferrea-titanium-retainer-mitsubishi-evo-x-qty-16","title":"Ferrea Titanium Retainer Mitsubishi EVO X (QTY 16)","description":"Part #: E11089\u003cbr\u003e \u003cbr\u003e\u003cp\u003eFerrea’s wide range of retainers are available for Domestic,Sport Compact and Motorcycle markets. We currently offer four different types of retainers to choose from: Titanium, Lightweight Tool Steel, Steel and Aluminum Magnesium retainers, all of which are CNC machined to perfection and offer superior strength and stability. \u003cbr\u003e\u003cbr\u003eMITSUBISHI EVOLUTION X (2007 - 2016) TITANIUM RETAINERS 2.0L - DOHC 16 Valve (4B11T) \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValve Stem Size: 5.5 mm\u003c\/li\u003e\n\u003cli\u003eDiameter (A): 25.27 mm\u003c\/li\u003e\n\u003cli\u003eInn Step Diameter (C): 16.76 mm\u003c\/li\u003e\n\u003cli\u003eReferences: Double Spring-7 deg Pro CNC- (16 pieces) Ferrea Racing Springs #S10118 and Ferrea Valve Lock # K10091\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44850522515,"sku":"ferE11089","price":344.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Titanium-Retainer-Mitsubishi-EVO-X-QTY-16.jpg?v=1744296810"},{"product_id":"e20046-ferrea-steel-retainer-mitsubishi-evo-x-qty-16","title":"Ferrea Steel Retainer Mitsubishi EVO X (QTY 16)","description":"Part #: E20046\u003cbr\u003e \u003cbr\u003e\u003cp\u003eFerrea’s wide range of retainers are available for Domestic,Sport Compact and Motorcycle markets. We currently offer four different types of retainers to choose from: Titanium, Lightweight Tool Steel, Steel and Aluminum Magnesium retainers, all of which are CNC machined to perfection and offer superior strength and stability. \u003cbr\u003e\u003cbr\u003eMITSUBISHI EVOLUTION X (2007 - 2016) TOOL STEEL RETAINERS 2.0L - DOHC 16 Valve (4B11T) \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValve Stem Size: 5.5 mm\u003c\/li\u003e\n\u003cli\u003eDiameter (A): 25.15 mm\u003c\/li\u003e\n\u003cli\u003eInn Step Diameter (C): 16.76 mm\u003c\/li\u003e\n\u003cli\u003eReferences: Double Spring-7 deg Pro CNC - (16 pieces) Ferrea Racing Springs# S10118 Ferrea Valve Lock # K10091\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44850528467,"sku":"ferE20046","price":336.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Steel-Retainer-Mitsubishi-EVO-X-QTY-16.jpg?v=1744296812"},{"product_id":"26125-manley-valve-spring-retainer-set-eclipse-laser-talon-4g63-1990-1998-evo-8-evo-9-2003-2006","title":"Manley Valve Spring \u0026 Retainer Set Eclipse \/ Laser \/ Talon 4G63 1990-1998 \/ Evo 8 \/ Evo 9 2003-2006","description":"Part #: 26125\u003cbr\u003e \u003cbr\u003eWhen upgrading your valves it is a must to also upgrade the valve springs and retainers. Manley's valve springs are wound using the cleanest alloy available and are also heat treated to allow for durability. These valves are specifically designed to be used in high revving applications and are made to take whatever you can throw at them. Manley titanium retainers are made of rugged and certified, heat treated aerospace grade titanium. They are a must for any high performance engine revving past the stock limits. The light weight mass allows the motor to rev higher safely, but still keeps dangerous valve float in check. Manley has designed these with the highest quality standards and it shows in every aspect.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNote:\u003c\/b\u003e\u003cbr\u003eManley valvetrain kits are sold in a full set of 16 springs \u0026amp; 16 retainers.\u003cbr\u003eValvetrain kits are sold WITHOUT locks\u003cbr\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":44889231443,"sku":"man26125","price":322.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Manley-Valve-Spring-Retainer-Set-Eclipse-Laser-Talon-4G63-1990-1998-Evo-8-Evo-9-2003-2006.jpg?v=1744300311"},{"product_id":"bc2300-16-brian-crower-titanium-retainer-kit-wrx-2002-2014-sti-2004-2021-subaru-turbo-models","title":"Brian Crower Titanium Retainer Kit WRX 2002-2014 \/ STI 2004-2021 Subaru Turbo Models","description":"\u003cp\u003e\u003cstrong\u003eTITANIUM RETAINERS ONLY - THIS KIT DOES NOT CONTAIN SPRINGS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePart #: BC2300-16\u003c\/p\u003e\n\u003cp\u003eBrian Crower titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. These are the same retainers that come with the Brian Crower valve spring kit and have not been tested on other valve springs.\u003c\/p\u003e\n\u003cp\u003eListing photo may differ from actual product.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":44891980051,"sku":"brcBC2300-16","price":193.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Brian-Crower-Titanium-Retainer-Kit-WRX-2002-2014-STI-2004-2021-Subaru-Turbo-Models.jpg?v=1743851202"},{"product_id":"26195-manley-valve-spring-and-retainer-kit-mitsubishi-evo-x-4b11t","title":"Manley Valve Spring and Retainer Kit Mitsubishi EVO X (4B11T)","description":"Part #: 26195\u003cbr\u003e \u003cbr\u003eWhen upgrading your valves it is a must to also upgrade the valve springs and retainers. Manley's valve springs are wound using the cleanest alloy available and are also heat treated to allow for durability. They are specifically designed to be used in high revving applications and are made to take whatever you can throw at them. \u003cbr\u003e\u003cbr\u003e Manley titanium retainers are made of rugged and certified, heat treated aerospace grade titanium. They are a must for any high performance engine revving past the stock limits. The light weight mass allows the motor to rev higher safely, but still keeps dangerous valve float in check. Manley has designed these with the highest quality standards and it shows in every aspect. \u003cbr\u003e\u003cbr\u003e Note: Sold in sets of 16. \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":44892797395,"sku":"man26195","price":380.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Manley-Valve-Spring-and-Retainer-Kit-Mitsubishi-EVO-X-4B11T.jpg?v=1744300722"},{"product_id":"e20055-ferrea-steel-retainer-scion-fr-s-2013-2016-subaru-brz-2013-2019-qty-16","title":"Ferrea Steel Retainer Scion FR-S 2013-2016 \/ Subaru BRZ 2013-2020 (QTY 16)","description":"Part #: E20055\u003cbr\u003e \u003cbr\u003e\u003cp\u003eFerrea’s wide range of retainers are available for Domestic,Sport Compact and Motorcycle markets. We currently offer four different types of retainers to choose from: Titanium, Lightweight Tool Steel, Steel and Aluminum Magnesium retainers, all of which are CNC machined to perfection and offer superior strength and stability. \u003cbr\u003e\u003cbr\u003eSUBARU BR-Z \/ Scion FR-S (2012 - 2016) TOOL STEEL RETAINERS \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2.0L - DOHC 16 Valve (FA20)\u003c\/li\u003e\n\u003cli\u003eValve Stem Size: 5.5 mm\u003c\/li\u003e\n\u003cli\u003eDiameter (A): 27.94 mm\u003c\/li\u003e\n\u003cli\u003eInn Step Diameter (C): 20.95 mm\u003c\/li\u003e\n\u003cli\u003eReferences: Single Spring-7 deg Pro CNC - (16 pieces)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44896779219,"sku":"ferE20055","price":336.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Steel-Retainer-Scion-FR-S-2013-2016-Subaru-BRZ-2013-2020-QTY-16.jpg?v=1744301147"},{"product_id":"s10154-ferrea-single-valve-spring-2012-2016-subaru-brz-scion-fr-s-qty-16","title":"Ferrea Single Valve Spring 2012-2016 Subaru BRZ \/ Scion FR-S (QTY 16)","description":"Part #: S10154\u003cbr\u003e \u003cbr\u003e\u003cp\u003e2.0L - DOHC 16 Valve (4U-GSE), This spring requires Ferrea Tool Steel Retainer # E20055 and Ferrea Spring Seat Locator # SL1139. \u003cbr\u003e\u003cbr\u003e(Discard OEM Factory Spring Seat Locator) \u003cbr\u003e\u003cbr\u003eType\/Material\/Application: Single Spring - Stage 1 - Endurance Application.\u003c\/p\u003e\n\u003cp\u003ePrice is for a quantity of 16\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":44896782931,"sku":"ferS10154","price":299.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Ferrea-Single-Valve-Spring-2012-2016-Subaru-BRZ-Scion-FR-S-QTY-16.jpg?v=1744301150"},{"product_id":"sprk-1002-brz-supertech-14mm-lift-dual-valve-spring-kit-scion-fr-s-2013-2016-subaru-brz-2013-2017","title":"Supertech 14mm Lift Dual Valve Spring Kit Scion FR-S 2013-2016 \/ Subaru BRZ 2013-2017 | SPRK-1002-BRZ","description":"\u003cbr\u003e \u003cbr\u003e\n\u003cp\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Dual Spring\u003c\/li\u003e\n\u003cli\u003ePress.Seat: 74 @33.5mm\u003c\/li\u003e\n\u003cli\u003ePress.Open: 174 @10\u003c\/li\u003e\n\u003cli\u003eMax Lift: 14.00mm\u003c\/li\u003e\n\u003cli\u003eCoil Bind: 19.50mm\u003c\/li\u003e\n\u003cli\u003eRate: 10.00mm\u003c\/li\u003e\n\u003cli\u003eRetainer: RET-H1000-BRZ +SEAT-H1002D-BRZ\u003c\/li\u003e\n\u003cli\u003eDetails:\u003c\/li\u003e\n\u003cli\u003eView More\u003c\/li\u003e\n\u003cli\u003eOutSpr.OD: 29.05mm\u003c\/li\u003e\n\u003cli\u003eOutSpr.ID: 21.85mm\u003c\/li\u003e\n\u003cli\u003eInnSpr.OD: 20.50mm\u003c\/li\u003e\n\u003cli\u003eInnSpr.ID: 15.50mm\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Supertech","offers":[{"title":"Default Title","offer_id":44896787667,"sku":"sptSPRK-1002-BRZ","price":602.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Supertech-14mm-Lift-Dual-Valve-Spring-Kit-Scion-FR-S-2013-2016-Subaru-BRZ-2013-2017-SPRK-1002-BRZ.jpg?v=1744301152"},{"product_id":"sprk-100-brz-supertech-15mm-lift-dual-valve-spring-kit-scion-fr-s-2013-2016-subaru-brz-2013-2019","title":"Supertech 15mm Lift Dual Valve Spring Kit Scion FR-S 2013-2016 \/ Subaru BRZ 2013-2020","description":"Part #: SPRK-100-BRZ\u003cbr\u003e \u003cbr\u003e\u003cp\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Dual Spring\u003c\/li\u003e\n\u003cli\u003ePress.Seat: 87 @33.5mm\u003c\/li\u003e\n\u003cli\u003ePress.Open: 212 @10\u003c\/li\u003e\n\u003cli\u003eMax Lift: 15.00mm\u003c\/li\u003e\n\u003cli\u003eCoil Bind: 18.50mm\u003c\/li\u003e\n\u003cli\u003eRate: 12.50mm\u003c\/li\u003e\n\u003cli\u003eRetainer: RET-H1000-BRZ +SEAT-H1002D-BRZ\u003c\/li\u003e\n\u003cli\u003eOutSpr.OD: 30.20mm\u003c\/li\u003e\n\u003cli\u003eOutSpr.ID: 22.20mm\u003c\/li\u003e\n\u003cli\u003eInnSpr.OD: 22.20mm\u003c\/li\u003e\n\u003cli\u003eInnSpr.ID: 16.80mm\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Supertech","offers":[{"title":"Default Title","offer_id":44896789203,"sku":"sptSPRK-100-BRZ","price":602.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Supertech-15mm-Lift-Dual-Valve-Spring-Kit-Scion-FR-S-2013-2016-Subaru-BRZ-2013-2020.jpg?v=1744301155"},{"product_id":"5056-gsc-p-d-single-beehive-valve-spring-titanium-retainer-kit-wrx-2015-2021-scion-fr-s-2013-2016-subaru-brz-2013-2018","title":"GSC P-D Single Beehive Valve Spring + Titanium Retainer Kit WRX 2015-2021 \/ Scion FR-S 2013-2016 \/ Subaru BRZ 2013-2018 | 5056","description":"Part #: 5056\u003cbr\u003e \u003cbr\u003e\n\u003cp\u003eAll new GSC Power-Division Beehive Spring Kit with Titanium Retainers for the Subaru BRZ and Scion FRS. The 5056 Spring kit uses Chromoly spring seats to locate the ovate wire beehive spring and utilizes lightweight, precision Titanium retainers. This is absolutely the most lightweight, strongest spring kit for the FA20 platform. Capable of 35 PSI of Boost at 9,500 RPM, it’s a must have for high boost, high RPM builds. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold as a set of 16\u003c\/li\u003e\n\u003cli\u003eKit Includes Springs, Spring Seats and Ti Retainers.\u003c\/li\u003e\n\u003cli\u003e88 LBS @ Seat\/ 211LBS @.400\" Lift\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":44896801555,"sku":"gsc5056","price":451.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/GSC-P-D-Single-Beehive-Valve-Spring-Titanium-Retainer-Kit-WRX-2015-2021-Scion-FR-S-2013-2016-Subaru-BRZ-2013-2018-5056.jpg?v=1743764727"},{"product_id":"5756-gsc-p-d-single-valve-spring-titanium-retainer-kit-scion-fr-s-2013-2016-subaru-brz-2013-2019","title":"GSC P-D Single Valve Spring + Titanium Retainer Kit Scion FR-S 2013-2016 \/ Subaru BRZ 2013-2020","description":"Part #: 5756\u003cbr\u003e \u003cbr\u003e\u003cp\u003eAll new GSC Power-Division Single, Cylindrical Spring kit for the Subaru BRZ, Scion FRS and Toyota FT86 using the new 2.0L NA boxer engine. These are great for boosted applications or high revving NA engines needing more spring with out breaking the bank. These can handle up to 8200RPM and 20LBS of boost due to new Chromoly valve spring seats and light weight titanium retainers. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncludes: \u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e16 Valve Springs\u003c\/li\u003e\n\u003cli\u003e16 Ti Retainers\u003c\/li\u003e\n\u003cli\u003e16 Spring Seats \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e5756 Single Spring\u003c\/li\u003e\n\u003cli\u003e93lbs @ 1.300\"\u003c\/li\u003e\n\u003cli\u003e175lbs @ .400\" lift\u003c\/li\u003e\n\u003cli\u003eMax Boost: 20 PSI\u003c\/li\u003e\n\u003cli\u003eMax RPM: 8200\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":44896802515,"sku":"gsc5756","price":284.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/GSC-P-D-Single-Valve-Spring-Titanium-Retainer-Kit-Scion-FR-S-2013-2016-Subaru-BRZ-2013-2020.jpg?v=1743764728"},{"product_id":"bc0220-brian-crower-valve-springs-and-retainer-kit-nissan-350z-infiniti-g35-vq35de","title":"Brian Crower Valve Springs and Retainer Kit Nissan 350z \/ Infiniti G35 VQ35DE","description":"Part #: BC0220\u003cbr\u003e \u003cbr\u003e\u003cp\u003e\u003cspan\u003eDesigned for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSpecs:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Spring Pressure \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Seat: 1.440\" @ 100 lbs \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Open: 0.990\" @ 236 lbs \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Coil Bind: 0.815\" (no machine work required) \u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":44923541587,"sku":"brcBC0220","price":483.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Brian-Crower-Valve-Springs-and-Retainer-Kit-Nissan-350z-Infiniti-G35-VQ35DE.jpg?v=1744305169"},{"product_id":"5041-gsc-p-d-stage-3-beehive-valve-springs-w-titanium-retainer-valvetrain-kit-mitsubishi-evo-7-8-9","title":"GSC P-D Stage 3 Beehive Valve Springs w\/ Titanium Retainer Valvetrain Kit Mitsubishi EVO 7 \/ 8 \/ 9","description":"Part #: 5041\u003cbr\u003e \u003cbr\u003e\u003cp\u003eThe Stage 3 Single Beehive valve spring set, includes new 4340 Chro-molly spring seats and Titanium Retainer set. This kit is capable of 11000+ RPMS, with as much as 12.5mm of lift. This is a must have for anyone pushing the limits of their Evolution. If you have had problems with valve float or throwing rocker arms this is the spring set that will cure your problems.\u003c\/p\u003e\n\u003cp\u003eSpring\/Retainer Kit; Beehive Single High Pressure Spring; Titanium Retainer; Uses OEM Spring Seat\u003c\/p\u003e\n\u003cp\u003eLift CB0.620\"\u003c\/p\u003e\n\u003cp\u003eSeat Pressure 97 @ 1.57 \/ 238 @ 0.450\"\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":12264265842784,"sku":"gsc5041","price":399.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/GSC-P-D-Stage-3-Beehive-Valve-Springs-w-Titanium-Retainer-Valvetrain-Kit-Mitsubishi-EVO-7-8-9.jpg?v=1743766062"},{"product_id":"kel-kvs1847-bt-kelford-high-performance-beehive-valve-spring-titanium-retainer-kit-subaru-sti-2004-2021","title":"Kelford High Performance Beehive Valve Spring \u0026 Titanium Retainer Kit Subaru WRX 02-14 \/ STI 02-21 | KVS1847-BT","description":"\u003cp data-start=\"249\" data-end=\"674\"\u003e\u003cstrong\u003eProduct Fitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"249\" data-end=\"674\"\u003e2004-2021 Subaru STI\u003c\/p\u003e\n\u003cp data-start=\"249\" data-end=\"674\"\u003e2002-2014 Subaru WRX\u003c\/p\u003e\n\u003cp data-start=\"249\" data-end=\"674\"\u003eDesigned for high-performance Subaru EJ engines, the Kelford Beehive Valve Spring and Titanium Retainer Kit is essential for high-lift camshaft applications and high-RPM durability. Engineered with premium materials and advanced surface treatments, this kit ensures reliability, endurance, and optimized valve control at elevated engine speeds.\u003c\/p\u003e\n\u003cp data-start=\"676\" data-end=\"693\"\u003e\u003cstrong data-start=\"676\" data-end=\"693\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"694\" data-end=\"1202\"\u003e\n\u003cli data-start=\"694\" data-end=\"770\"\u003e\n\u003cp data-start=\"696\" data-end=\"770\"\u003eCompatible with EJ20 and EJ25 engines in 2002–2014 WRX and 2004–2021 STi\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"771\" data-end=\"825\"\u003e\n\u003cp data-start=\"773\" data-end=\"825\"\u003eRequired for use with select Kelford camshaft sets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"826\" data-end=\"908\"\u003e\n\u003cp data-start=\"828\" data-end=\"908\"\u003eOvate wire PACALOY beehive springs for reduced mass and improved valve control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"909\" data-end=\"970\"\u003e\n\u003cp data-start=\"911\" data-end=\"970\"\u003eTitanium retainers for lightweight strength and precision\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"971\" data-end=\"1052\"\u003e\n\u003cp data-start=\"973\" data-end=\"1052\"\u003eNano-peen and gold nitride surface finishes enhance spring fatigue resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1053\" data-end=\"1140\"\u003e\n\u003cp data-start=\"1055\" data-end=\"1140\"\u003eHigh-frequency spring design with 100 lb seat pressure at 35.50 mm installed height\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1141\" data-end=\"1202\"\u003e\n\u003cp data-start=\"1143\" data-end=\"1202\"\u003e12.0 mm maximum valve lift with 23.00 mm coil bind height\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1204\" data-end=\"1217\"\u003e\u003cstrong data-start=\"1204\" data-end=\"1217\"\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1218\" data-end=\"1276\"\u003e\n\u003cli data-start=\"1218\" data-end=\"1248\"\u003e\n\u003cp data-start=\"1220\" data-end=\"1248\"\u003e(16) Beehive Valve Springs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1249\" data-end=\"1276\"\u003e\n\u003cp data-start=\"1251\" data-end=\"1276\"\u003e(16) Titanium Retainers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kelford Cams","offers":[{"title":"Default Title","offer_id":44952735187,"sku":"KEL-KVS1847-BT","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Kelford-High-Performance-Beehive-Valve-Spring-Titanium-Retainer-Kit-Subaru-WRX-02-14-STI-02-21-KVS1847-BT.jpg?v=1755256572"},{"product_id":"tvs1735-gsc-p-d-ovate-beehive-valve-spring","title":"GSC P-D Ovate Beehive Valve Spring","description":"Part #: TVS1735\u003cbr\u003e \u003cbr\u003e\u003cp\u003e\u003cspan\u003eGSC Power-Division Beehive springs feature some of the most impressive manufacturing techniques in the industry. Our beehive spring uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. What this means to you is our spring has the highest level of spring load retention while still maintaining good fatigue throughout the life of the spring. Only the best materials go into the GSC Power-Division Beehive valve spring. Each batch is scrutinized for tensile strength properties, ductility, inclusion content, and fatigue toughness.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe beehive valve spring shape has become the buzz lately. Some have inquired as to the benefits of a beehive spring vs the dual springs that are sold by others. While some might find that the beehive spring design is new it has been used commonly in many OE engines as well as in all of the NASCAR and F1 engines of today. Why? The beehive shape is more stable than standard single or dual cylindrical springs. The beehive design which incorporates an ovate wire is more than capable of the performance demands that were previously only matched by a Dual Springs. With the smaller and lighter retainer used on the beehive valve spring allow for higher RPM and more valve control.  So beehive valve springs, with there lighter weight retainers allow for engine's to rev quicker and maintain a more stable valve motion than the traditional cylindrical springs of yesteryear.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eBeehive Spring Benefits:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRev faster\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLighter components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore durable design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLess stress on valvetrain components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLower spring frequency for more precise valve control.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore valve control equals more aggressive cam profiles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNano Peened for faster break in and less stressed springs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAll of these items help to return more power for you to enjoy!\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003ePer is per spring.\u003c\/span\u003e\u003c\/p\u003e This item is non application specific. Please verify compatibility before purchase. May require some modification for proper installation. \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":52428561875,"sku":"gscTVS1735","price":13.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/GSC-P-D-Ovate-Beehive-Valve-Spring.jpg?v=1744317462"},{"product_id":"bc1600-brian-crower-single-valve-springs-subaru-wrx-2002-2014-sti-2004-2021","title":"Brian Crower Single Valve Springs Subaru WRX 2002-2014 \/ STI 2004-2021","description":"Part #: BC1600\u003cbr\u003e \u003cbr\u003e\u003cp\u003e\u003cspan\u003eDesigned for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpring Pressure: BC1600 Seat: 1.420\" @ 80 lbs \/ Open: 1.000\" @ 178 lbs \/ Coil Bind: 0.850\" (no machine work required)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSubaru EJ205-WRX\/EJ257-STi?á\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":728109842451,"sku":"brcBC1600","price":90.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Brian-Crower-Single-Valve-Springs-Subaru-WRX-2002-2014-STI-2004-2021.jpg?v=1744199078"},{"product_id":"bc0600s-brian-crower-spring-steel-retainers-subaru-wrx-sti-ej205-ej257-2002-2021","title":"Brian Crower Spring + Steel Retainers Subaru WRX \/ STI EJ205\/EJ257 2002-2021","description":"Part #: BC0600S\u003cbr\u003e \u003cbr\u003e\u003cp\u003e\u003cspan\u003eThe Brian Crower Single Spring\/Steel Retainer Kit is a great addition for those of you planning buiding your head, or adding a set of aggressive cams. These are designed for high-RPM applications and are crafted from high grade, chrome silicone alloy.?á\u003c\/span\u003e Kit includes 16 single coil valve springs and 16?ásteel retainers.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e Spring Pressure:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeat: 1.420(in) @ 60 lbs, Open: 1.000(in) @ 160 lbs, Coil Bind: 0.860(in)\u003c\/li\u003e\n\u003cli\u003eNo machine work required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number: BC0600S\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":12274078679136,"sku":"brcBC0600S","price":184.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Brian-Crower-Spring-Steel-Retainers-Subaru-WRX-STI-EJ205EJ257-2002-2021.jpg?v=1744326909"},{"product_id":"5073-gsc-p-d-single-conical-valve-spring-titanium-retainer-spring-seat-kit-subaru-ej-wrx-2002-2014-sti-2004-2021","title":"GSC P-D Single Conical Valve Spring Titanium Retainer \u0026 Spring Seat Kit Subaru EJ WRX 2002-2014 \/ STI 2004-2021","description":"Part #: 5073\u003cbr\u003e \u003cbr\u003e\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eGSC Power-Division high pressure CONICAL Spring set with Titanium Retainer for the Subaru Turbo EJ Platforms\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e109lbs @ 1.303\" install height \u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e259lbs @ 0.850\"\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe GSC Power-Division High Pressure Conical Valve Spring with Ti Retainer for Subaru Turbo EJ Platforms includes 16 titanium retainers, 16 conical valve springs, and 16 chromoly valve spring seats. High RPM and High Boost levels are not a problem on these kits. True conical valve springs are not a new concept and are industry proven to provide several key advantages over traditional spring designs. A major advantage of conical springs vs. traditional cylindrical or beehive springs is the damping and removal of valvetrain harmonics. Of the three designs, conical springs are the front runners in valvetrain harmonic stability. Utilizing a varying coil diameter as well as coil spacing, a conical spring acts as a natural harmonic damper in the transfer of valvetrain shock. This translates to less stress, less wear, and a longer life of the included components. This level of protection is needed in today’s engines being pushed to their physical and mechanical limits by aftermarket modifications. Every GSC conical spring offers a superfinished surface treatment to go along with the patented, multi-step heat treatment process. The finished product is an extremely reliable, high-performance spring allowing the users to push higher RPMs, use more aggressive cam profiles, and turn up higher boost pressures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cu\u003eConical Spring Benefits:\u003c\/u\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eVastly improved harmonic stability with inherent self-damping design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSmaller design = weight reduction throughout the entire valvetrain system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApplications for high RPM and boost pressure with the ability to run more aggressive camshafts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eState of the art manufacturing and engineering production processes\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"1\" align=\"center\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" colspan=\"10\"\u003eGSC5073 High Pressure Conical Valve Spring Kit with Ti Retainer for the Subaru Turbo EJ Platforms\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003e\u003cspan\u003eSetup\u003c\/span\u003e\u003c\/th\u003e\n\u003cth scope=\"col\" colspan=\"2\"\u003e\u003cspan\u003eCoil Bind (in)\u003c\/span\u003e\u003c\/th\u003e\n\u003cth scope=\"col\" colspan=\"2\"\u003e\u003cspan\u003eInstall Height (in)\u003c\/span\u003e\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e\u003cspan\u003eSeat Pressure (lbs)\u003c\/span\u003e\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e\u003cspan\u003eOpen Pressure, 11.50mm lift\u003c\/span\u003e\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e\u003cspan\u003eMaximum Valve Lift (in)\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHP Conical\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e0.818\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e1.303\u003c\/td\u003e\n\u003ctd\u003e109\u003c\/td\u003e\n\u003ctd\u003e259 lbs @ 0.850\"\u003c\/td\u003e\n\u003ctd\u003e0.453\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":32733533765728,"sku":"gsc5073","price":481.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/GSC-P-D-Single-Conical-Valve-Spring-Titanium-Retainer-Spring-Seat-Kit-Subaru-EJ-WRX-2002-2014-STI-2004-2021.jpg?v=1744200837"},{"product_id":"gsc-p-d-21-4n-stainless-intake-valve-34mm-head-std-set-8-subaru-wrx-2015-2021-2282-8","title":"GSC P-D 21-4N Stainless Intake Valve 34mm Head STD SET 8 Subaru WRX 2015-2021 | 2282-8","description":"\u003cp\u003e\u003cstrong\u003eProduct Fitment: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2015-2021 Subaru WRX\u003c\/p\u003e\n\u003cp data-start=\"339\" data-end=\"680\"\u003eUpgrade the valvetrain of your 2015-2021 Subaru WRX (FA20F engine) with the GSC Power-Division STD Intake Valve. Engineered from premium 21-4N stainless steel and rigorously flow-tested, this valve replaces the factory unit with a performance-oriented design that improves flow, reduces distortion, and supports higher-RPM or boosted setups.\u003c\/p\u003e\n\u003cp data-start=\"682\" data-end=\"701\"\u003e\u003cstrong data-start=\"682\" data-end=\"699\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"702\" data-end=\"1403\"\u003e\n\u003cli data-start=\"702\" data-end=\"760\"\u003e\n\u003cp data-start=\"704\" data-end=\"760\"\u003e34 mm head diameter — standard size for exact fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"761\" data-end=\"845\"\u003e\n\u003cp data-start=\"763\" data-end=\"845\"\u003eSwirl-polished valve head for smoother airflow and better volumetric efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"846\" data-end=\"954\"\u003e\n\u003cp data-start=\"848\" data-end=\"954\"\u003eBack-cut design reduces valve mass, allowing quicker valve response and supporting higher rpm potential.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"955\" data-end=\"1067\"\u003e\n\u003cp data-start=\"957\" data-end=\"1067\"\u003eMicro-polished stem minimizes oil retention and drag in the valve guide for smoother motion and longer life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1068\" data-end=\"1162\"\u003e\n\u003cp data-start=\"1070\" data-end=\"1162\"\u003eHardened or fused tip construction ensures durability under high loads and minimizes wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1163\" data-end=\"1295\"\u003e\n\u003cp data-start=\"1165\" data-end=\"1295\"\u003eBalanced keeper groove geometry and precision tip length help maintain optimal valvetrain geometry and simplify lash adjustment.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1405\" data-end=\"1806\"\u003eWhether you’re restoring your engine after high mileage, building for higher boost or rpm, or simply want the peace-of-mind of upgraded valvetrain components — the GSC STD Intake Valve offers improved durability and performance over stock. Engineered specifically for the Subaru FA20F platform, it ensures compatibility and long-term reliability in demanding applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":32925499195488,"sku":"gsc2282-8","price":151.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/GSC-P-D-21-4N-Stainless-Intake-Valve-34mm-Head-STD-SET-8-Subaru-WRX-2015-2021-2282-8.jpg?v=1767324014"},{"product_id":"manley-valve-spring-and-retainer-kit-w-o-valve-locks-16-each-wrx-02-14-sti-04-21-26180","title":"Manley Valve Spring and Retainer Kit w\/o Valve Locks (16 each) WRX 02-14 \/ STI 04-21 | 26180","description":"\u003cp data-start=\"535\" data-end=\"800\"\u003e\u003cstrong\u003eProduct Fitment: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"535\" data-end=\"800\"\u003e2004-2021 Subaru STI\u003c\/p\u003e\n\u003cp data-start=\"535\" data-end=\"800\"\u003e2002-2014 Subaru WRX\u003c\/p\u003e\n\u003cp data-start=\"535\" data-end=\"800\"\u003eWhen you’re upgrading your turbo Subaru EJ‑series engine (WRX, STI, LGT, FXT), the valvetrain must keep up with increased lift, higher revs and boosted conditions. The Manley Performance Valve Spring \u0026amp; Retainer Kit (Part 26180) is built to deliver that reliability.\u003c\/p\u003e\n\u003cp data-start=\"802\" data-end=\"1192\"\u003eEach kit features high‑tensile chrome‑silicon alloy single‑conical springs combined with aerospace‑grade titanium CNC‑machined retainers. The springs are optimized to maintain proper pressure, resist fatigue and deliver precise valve control even under aggressive camshafts or high RPMs. Retainers are manufactured to extremely tight tolerances, supporting reliable, repeatable performance.\u003c\/p\u003e\n\u003cp data-start=\"1194\" data-end=\"1229\"\u003e\u003cstrong data-start=\"1194\" data-end=\"1227\"\u003eKey Features \u0026amp; Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1230\" data-end=\"1700\"\u003e\n\u003cli data-start=\"1230\" data-end=\"1305\"\u003e\n\u003cp data-start=\"1232\" data-end=\"1305\"\u003eSPRING TYPE: Single‑conical ovate wire design for superior fatigue life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1306\" data-end=\"1349\"\u003e\n\u003cp data-start=\"1308\" data-end=\"1349\"\u003eOUTER \/ INNER DIAMETER: 1.050\" \/ 0.755\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1350\" data-end=\"1431\"\u003e\n\u003cp data-start=\"1352\" data-end=\"1431\"\u003ePRESSURES: 60 lbs @ 1.420\" install height; 151 lbs @ 1.050\"; 187 lbs @ 0.895\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1432\" data-end=\"1481\"\u003e\n\u003cp data-start=\"1434\" data-end=\"1481\"\u003eMAX NET LIFT: 0.525\" | STOCK NET LIFT: 0.370\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1482\" data-end=\"1512\"\u003e\n\u003cp data-start=\"1484\" data-end=\"1512\"\u003eRATE: Approx. 245 lbs\/inch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1513\" data-end=\"1574\"\u003e\n\u003cp data-start=\"1515\" data-end=\"1574\"\u003eINCLUDES: Set of 16 valve springs + 16 titanium retainers\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1702\" data-end=\"2122\"\u003e\u003cstrong data-start=\"1702\" data-end=\"1726\"\u003eWhy Choose This Kit?\u003c\/strong\u003e\u003cbr data-start=\"1726\" data-end=\"1729\"\u003eUpgrading your springs and retainers is a foundational step when optimizing for track, high‑rev or boosted performance. This Manley kit ensures your valvetrain remains tightly controlled, prevents valve float or bounce, and offers the durability needed for sustained high‑performance operation. It’s especially recommended if you’ve increased lift, modified heads or are pushing the rev limit.\u003c\/p\u003e\n\u003cp data-start=\"2124\" data-end=\"2158\"\u003e\u003cstrong data-start=\"2124\" data-end=\"2156\"\u003eFitment \u0026amp; Installation Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2159\" data-end=\"2603\"\u003e\n\u003cli data-start=\"2276\" data-end=\"2399\"\u003e\n\u003cp data-start=\"2278\" data-end=\"2399\"\u003eRecommend full engine disassembly for installation: removal of camshafts, valve covers and proper spring tools required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2400\" data-end=\"2491\"\u003e\n\u003cp data-start=\"2402\" data-end=\"2491\"\u003eAfter installation, verify valve clearances, spring seat pressures and retainer seating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2492\" data-end=\"2603\"\u003e\n\u003cp data-start=\"2494\" data-end=\"2603\"\u003eIdeal for builds where reliability during high RPM, aggressive valve motion or boost conditions is critical\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":39261682958432,"sku":"man26180","price":345.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/Manley-Valve-Spring-and-Retainer-Kit-wo-Valve-Locks-16-each-WRX-02-14-STI-04-21-26180.webp?v=1767324187"},{"product_id":"22195-16-manley-mitsubishi-4b11t-16pc-valve-springs","title":"Manley Mitsubishi 4B11T 16pc Valve Springs","description":"\u003cspan data-mce-fragment=\"1\"\u003ePart #: 22195-16\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003cdiv class=\"label\"\u003e\n\u003cp id=\"products_description\" data-mce-fragment=\"1\"\u003eManley Performance valve springs are specifically designed to withstand the rigors of todays aftermarket Sport Compact camshafts and properly control the valve train in these high revving Sport Compact engine applications.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThis means utilizing only the best, super clean chrome silicon high tensile strength steel alloy and performing classified heat treatment and shot peen processing to insure the ultimate fatigue life and limit load loss. Designed to handle aftermarket camshafts, when paired with Manley Performance Titanium Retainers, max engine revs are 10,000 RPM.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOuter Diameter : .990\"\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInner Diameter : .710\"\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSeat Pressure : 86 @ 1.400\"\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOpen Pressure : 180 @ 1.030\" \/ 198 @ .970\"\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eStock\/Max Lift : .370\"\/.430\"\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCoil Bind : .920\"\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSpring Rate: 253 (lbs.\/in)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":39312101605472,"sku":"man22195-16","price":170.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Manley-Mitsubishi-4B11T-16pc-Valve-Springs.jpg?v=1744358414"},{"product_id":"gsc-dual-cylindrical-valve-spring-kit-wrx-15-21-brz-fr-s-86-13-20-5256","title":"GSC Dual Cylindrical Valve Spring Kit WRX 15-21 \/ BRZ \/ FR-S \/ 86 13-20 | 5256","description":"\u003cp\u003e\u003cstrong\u003eProduct Fitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2015-2021 Subaru WRX\u003c\/p\u003e\n\u003cp\u003e2013-2016 Scion FR-S\u003c\/p\u003e\n\u003cp\u003e2013-2020 Subaru BRZ\u003c\/p\u003e\n\u003cp\u003e2017-2020 Toyota 86\u003c\/p\u003e\n\u003cp data-start=\"482\" data-end=\"861\"\u003eThe GSC Power-Division Dual Valve Spring Kit for the FA20 engine offers a serious valvetrain upgrade for enthusiasts building high-revs or high-boost applications. Engineered for strength, precision, and endurance, this kit features dual concentric springs with high seat pressure and matching titanium retainers for maximum reliability.\u003c\/p\u003e\n\u003cp data-start=\"863\" data-end=\"882\"\u003e\u003cstrong data-start=\"863\" data-end=\"880\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"883\" data-end=\"1392\"\u003e\n\u003cli data-start=\"883\" data-end=\"987\"\u003e\n\u003cp data-start=\"885\" data-end=\"987\"\u003eTwin (dual) valve spring construction designed to resist float and maintain control at extreme RPMs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"988\" data-end=\"1100\"\u003e\n\u003cp data-start=\"990\" data-end=\"1100\"\u003eApproximate seat pressures: ~102 lbs (IN) @ 1.299″ install height and ~100 lbs (EX) @ 1.303″ install height.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1101\" data-end=\"1180\"\u003e\n\u003cp data-start=\"1103\" data-end=\"1180\"\u003eMaximum RPM rating: ~9,500; Max boost capacity: ~50 psi depending on build.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1181\" data-end=\"1273\"\u003e\n\u003cp data-start=\"1183\" data-end=\"1273\"\u003eIncludes titanium retainers, spring seats, and all required components for installation.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1394\" data-end=\"1773\"\u003e\u003cstrong data-start=\"1394\" data-end=\"1418\"\u003eWhy Choose This Kit?\u003c\/strong\u003e\u003cbr data-start=\"1418\" data-end=\"1421\"\u003eIf your FA20 build is seeing higher RPMs, aggressive cam profiles, forced induction, or increased boost, the factory valve springs may become a limiting factor. This GSC kit delivers stronger spring force, better fatigue resistance, and improved control under load — enabling your engine to perform consistently without valve float, bounce, or failure.\u003c\/p\u003e\n\u003cp data-start=\"1775\" data-end=\"1810\"\u003e\u003cstrong data-start=\"1775\" data-end=\"1808\"\u003eInstallation \u0026amp; Fitment Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1811\" data-end=\"2178\"\u003e\n\u003cli data-start=\"1914\" data-end=\"2006\"\u003e\n\u003cp data-start=\"1916\" data-end=\"2006\"\u003eRequires full valvetrain accessibility; removal of camshafts and valve covers necessary.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2007\" data-end=\"2107\"\u003e\n\u003cp data-start=\"2009\" data-end=\"2107\"\u003eAfter installation, perform proper valve clearance, spring seat checks, and retainer inspection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2108\" data-end=\"2178\"\u003e\n\u003cp data-start=\"2110\" data-end=\"2178\"\u003eRecommended for engines running high RPM or forced induction setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":39339394596960,"sku":"gsc5256","price":449.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/GSC-Dual-Cylindrical-Valve-Spring-Kit-WRX-15-21-BRZ-FR-S-86-13-20-5256.jpg?v=1767324537"},{"product_id":"gsc-p-d-dual-conical-valve-spring-set-w-titanium-retainer-chromoly-seats-5074","title":"GSC P-D Dual Conical Valve Spring Set w\/ Titanium Retainer \u0026 Chromoly Seats | 5074","description":"\u003cp\u003e\u003cstrong\u003eProduct Fitment:\u003cu\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2002-2014 Subaru WRX\u003c\/p\u003e\n\u003cp\u003e2004-2021 Subaru STI\u003c\/p\u003e\n\u003cp data-start=\"440\" data-end=\"831\"\u003eThe GSC Dual Conical Valve Spring Kit is a high-performance upgrade built for the turbocharged Subaru EJ engine family (EJ20\/EJ25). This kit includes dual-conical valve springs, titanium retainers, and chromoly spring seats—all designed to withstand extreme valvetrain conditions and enable aggressive cam profiles, high boost levels, and elevated RPM limits.\u003c\/p\u003e\n\u003cp data-start=\"833\" data-end=\"852\"\u003e\u003cstrong data-start=\"833\" data-end=\"850\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"853\" data-end=\"1635\"\u003e\n\u003cli data-start=\"853\" data-end=\"993\"\u003e\n\u003cp data-start=\"855\" data-end=\"993\"\u003e\u003cstrong data-start=\"855\" data-end=\"880\"\u003eTwin conical springs:\u003c\/strong\u003e This design offers inherent damping of valvetrain harmonics, improving stability and extending component life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"994\" data-end=\"1110\"\u003e\n\u003cp data-start=\"996\" data-end=\"1110\"\u003e\u003cstrong data-start=\"996\" data-end=\"1019\"\u003eTitanium retainers:\u003c\/strong\u003e Significantly reduce rotating mass while delivering exceptional durability under stress.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1111\" data-end=\"1215\"\u003e\n\u003cp data-start=\"1113\" data-end=\"1215\"\u003e\u003cstrong data-start=\"1113\" data-end=\"1139\"\u003eChromoly spring seats:\u003c\/strong\u003e Precision-engineered for secure installation and reliable spring seating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1216\" data-end=\"1397\"\u003e\n\u003cp data-start=\"1218\" data-end=\"1397\"\u003e\u003cstrong data-start=\"1218\" data-end=\"1247\"\u003ePrecision specifications:\u003c\/strong\u003e Coil bind of 0.790\", install heights of 1.368\" and 1.092\", seat pressure around 95 lbs, and open pressure at 11.5 mm lift of approximately 233 lbs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1398\" data-end=\"1513\"\u003e\n\u003cp data-start=\"1400\" data-end=\"1513\"\u003e\u003cstrong data-start=\"1400\" data-end=\"1430\"\u003eHigh RPM\/boost capability:\u003c\/strong\u003e Rated for up to 10,000 RPM and approximately 40 psi boost in performance builds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1637\" data-end=\"2030\"\u003e\u003cstrong data-start=\"1637\" data-end=\"1661\"\u003eWhy Choose This Kit:\u003c\/strong\u003e\u003cbr data-start=\"1661\" data-end=\"1664\"\u003eWhen pushing your Subaru’s EJ platform with aggressive camshafts, higher boost, or increased RPM, factory valve springs can quickly become the weak link. The GSC Power-Division Dual Conical Valve Spring Kit provides superior valve control, reduced spring surge, and improved reliability—allowing your engine to rev higher and perform better under extreme conditions.\u003c\/p\u003e\n\u003cp data-start=\"2032\" data-end=\"2067\"\u003e\u003cstrong data-start=\"2032\" data-end=\"2065\"\u003eFitment \u0026amp; Installation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2068\" data-end=\"2350\"\u003e\n\u003cli data-start=\"2068\" data-end=\"2123\"\u003e\n\u003cp data-start=\"2070\" data-end=\"2123\"\u003eCompatible with Subaru turbo EJ20 and EJ25 engines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2124\" data-end=\"2260\"\u003e\n\u003cp data-start=\"2126\" data-end=\"2260\"\u003eProfessional installation is highly recommended to ensure proper valve clearance, retainer torque, and cam\/valve geometry alignment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2261\" data-end=\"2350\"\u003e\n\u003cp data-start=\"2263\" data-end=\"2350\"\u003eAfter installation, follow proper break-in procedures and monitor valvetrain operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":39398930907232,"sku":"gsc5074","price":640.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/GSC-P-D-Dual-Conical-Valve-Spring-Set-w-Titanium-Retainer-Chromoly-Seats-5074.jpg?v=1767324756"},{"product_id":"brian-crower-subaru-ej205-ej207-ej257-series-dual-spring-titanium-retainer-spring-seal-kit","title":"Brian Crower Subaru EJ205\/EJ207\/EJ257 Series Dual Spring\/Titanium Retainer\/Spring Seal Kit","description":"\u003cspan data-mce-fragment=\"1\"\u003eDesigned for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures.\u003c\/span\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":39400387510368,"sku":"brcBC0610","price":514.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Brian-Crower-Subaru-EJ205EJ207EJ257-Series-Dual-SpringTitanium-RetainerSpring-Seal-Kit.jpg?v=1744359932"},{"product_id":"supertech-11-50mm-lift-single-beehive-valve-spring-kit-subaru-wrx-sti-sptsprk-ts1015-be-su4","title":"Supertech 11.50mm Lift Single Beehive Valve Spring Kit Subaru WRX 02-14 \/ STI 04-21 | SPRK-TS1015-BE-SU4","description":"\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e2002-2014 Subaru WRX\u003c\/p\u003e\n\u003cp\u003e2004-2021 Subaru STI\u003c\/p\u003e\n\u003cp\u003e(Engines: Subaru - EJ20 Turbo DOHC and Subaru - EJ25 Turbo DOHC)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Single Spring\u003c\/li\u003e\n\u003cli\u003eSeat Pressure: 85 @ 33.4mm\u003c\/li\u003e\n\u003cli\u003eOpen Pressure: 234 @ 11.5\u003c\/li\u003e\n\u003cli\u003eMax Lift: 11.50mm\u003c\/li\u003e\n\u003cli\u003eCoil Bind: 21.80mm\u003c\/li\u003e\n\u003cli\u003eRate: 12.7\u003c\/li\u003e\n\u003cli\u003eRetainer: RET-TS60\/WRX-BE\u003c\/li\u003e\n\u003cli\u003eSeat Locator: SEAT-TS\/SUB4\u003c\/li\u003e\n\u003cli\u003eInnSpr.ID: 15.20mm\u003c\/li\u003e\n\u003cli\u003eInnSpr.OD: 23.20mm\u003c\/li\u003e\n\u003cli\u003eOutSpr.OD: 27.70mm\u003c\/li\u003e\n\u003cli\u003eOutSpr.ID: 19.70mm\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Supertech","offers":[{"title":"Default Title","offer_id":39560933965920,"sku":"sptSPRK-TS1015-BE-SU4","price":596.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Supertech-11_50mm-Lift-Single-Beehive-Valve-Spring-Kit-Subaru-WRX-02-14-STi-04-21-SPRK-TS1015-BE-SU4.jpg?v=1707860462"},{"product_id":"subaru-oem-engine-valve-spring-retainer-subaru-sti-06-21-wrx-06-14-13209aa200","title":"Subaru OEM Valve Spring Retainer Subaru STI 06-21 \/ WRX 06-14 | 13209AA200","description":"\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/oem.png?v=1677790955\" alt=\"Genuine OEM Parts\" style=\"float: right;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is a direct genuine OEM replacement for your valve springs retainer on your 2006-2021 Subaru STI and 2006-2014 WRX.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Subaru OEM","offers":[{"title":"Default Title","offer_id":39599329247328,"sku":"sub13209AA200","price":2.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Subaru-OEM-Valve-Spring-Retainer-Subaru-STI-06-21-WRX-06-14-13209AA200.jpg?v=1744364594"},{"product_id":"subaru-oem-valve-spring-retainer-set-of-16-subaru-sti-06-21-wrx-06-14","title":"Subaru OEM Valve Spring Retainer (Set of 16) Subaru STI 06-21 \/ WRX 06-14","description":"\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/oem.png?v=1677790955\" alt=\"Genuine OEM Parts\" style=\"float:right;\"\u003e\n \u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is a direct genuine OEM replacement for your engine valve springs retainers on your 2006-2021 Subaru STI and 2006-2014 WRX. \u003cspan data-mce-fragment=\"1\"\u003eThis is sold in a complete set of 16. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\n\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Subaru OEM","offers":[{"title":"Default Title","offer_id":39599332982880,"sku":"KIT-sub13209AA200","price":44.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Subaru-OEM-Valve-Spring-Retainer-Set-of-16-Subaru-STI-06-21-WRX-06-14.jpg?v=1744364605"},{"product_id":"subaru-oem-valve-spring-retainer-keeper-subaru-sti-2004-2021-wrx-2002-2014-13210aa020","title":"Subaru OEM Valve Spring Retainer Keeper Subaru STI 2004-2021 \/ WRX 2002-2014 | 13210AA020","description":"\u003ch2\u003e\u003cstrong\u003eProduct Fitment:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e2002-2014 Subaru WRX\u003c\/p\u003e\n\u003cp\u003e2004-2021 Subaru STI \u003c\/p\u003e\n\u003cp\u003e2003-2006 Subaru Baja\u003c\/p\u003e\n\u003cp\u003e1998-2013 Subaru Forester\u003c\/p\u003e\n\u003cp\u003e1993-2010 Subaru Impreza\u003c\/p\u003e\n\u003cp\u003e1990-2012 Subaru Legacy \u003c\/p\u003e\n\u003cp\u003e1996-2012 Subaru Outback\u003c\/p\u003e\n\u003cp data-start=\"129\" data-end=\"424\" class=\"PDq2pG_selectionAnchorContainer\"\u003eMaintain proper valve train performance with the \u003cstrong data-start=\"178\" data-end=\"261\"\u003eGenuine Subaru Valve Spring Retainer Keeper (Part Number 13210AA020 \/ PT040299)\u003c\/strong\u003e. This OEM valve collet securely locks the valve spring retainer to the valve stem, ensuring proper valve spring tension, alignment, and reliable engine operation.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"426\" data-end=\"820\"\u003eCommonly known as a \u003cstrong data-start=\"446\" data-end=\"485\"\u003evalve keeper, valve lock, or collet\u003c\/strong\u003e, this small but critical component plays a major role in maintaining proper valve control during normal operation and high-RPM conditions. A worn, damaged, or improperly fitted keeper can affect valvetrain reliability, making replacement important during cylinder head rebuilds, valve jobs, engine refreshes, and performance upgrades.\u003c\/p\u003e\n\u003cp data-start=\"822\" data-end=\"993\"\u003eManufactured to Subaru factory specifications, the \u003cstrong data-start=\"873\" data-end=\"900\"\u003e13210AA020 valve keeper\u003c\/strong\u003e delivers the precise fit, durability, and reliability expected from an OEM engine component.\u003c\/p\u003e\n\u003chr data-start=\"995\" data-end=\"998\"\u003e\n\u003ch1 data-section-id=\"gu7kcq\" data-start=\"1000\" data-end=\"1018\"\u003eProduct Features\u003cstrong data-start=\"1022\" data-end=\"1039\"\u003e\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cul data-start=\"1020\" data-end=\"1481\"\u003e\n\u003cli data-section-id=\"qux9b9\" data-start=\"1183\" data-end=\"1220\"\u003eGenuine OEM replacement component\u003c\/li\u003e\n\u003cli data-section-id=\"1qiounv\" data-start=\"1221\" data-end=\"1268\"\u003eSecures valve spring retainer to valve stem\u003c\/li\u003e\n\u003cli data-section-id=\"xwft4e\" data-start=\"1269\" data-end=\"1312\"\u003eMaintains proper valve spring alignment\u003c\/li\u003e\n\u003cli data-section-id=\"1k84drw\" data-start=\"1313\" data-end=\"1357\"\u003eDesigned for factory fit and performance\u003c\/li\u003e\n\u003cli data-section-id=\"2ra3na\" data-start=\"1358\" data-end=\"1413\"\u003eIdeal for cylinder head service and engine rebuilds\u003c\/li\u003e\n\u003cli data-section-id=\"ntd7we\" data-start=\"1414\" data-end=\"1481\"\u003eHelps maintain reliable valve control during high-RPM operation\u003c\/li\u003e\n\u003cli data-section-id=\"ntd7we\" data-start=\"1414\" data-end=\"1481\"\u003eSold as set of 2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1483\" data-end=\"1486\"\u003e\n\u003ch1 data-section-id=\"b8y6te\" data-start=\"1488\" data-end=\"1498\"\u003eBenefits\u003c\/h1\u003e\n\u003cul data-start=\"1500\" data-end=\"1747\"\u003e\n\u003cli data-section-id=\"14rc7ir\" data-start=\"1500\" data-end=\"1537\"\u003eRestores proper valvetrain function\u003c\/li\u003e\n\u003cli data-section-id=\"1rmm3sr\" data-start=\"1538\" data-end=\"1577\"\u003eEnsures secure valve spring retention\u003c\/li\u003e\n\u003cli data-section-id=\"w04lk5\" data-start=\"1578\" data-end=\"1624\"\u003eHelps maintain consistent engine performance\u003c\/li\u003e\n\u003cli data-section-id=\"1wmi8dx\" data-start=\"1625\" data-end=\"1663\"\u003eSupports reliable high-RPM operation\u003c\/li\u003e\n\u003cli data-section-id=\"1m4ajux\" data-start=\"1664\" data-end=\"1710\"\u003eIdeal for OEM repairs and performance builds\u003c\/li\u003e\n\u003cli data-section-id=\"1pl3i3i\" data-start=\"1711\" data-end=\"1747\"\u003eGenuine Subaru quality and fitment\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Subaru OEM","offers":[{"title":"Default Title","offer_id":39599379513440,"sku":"sub13210AA020","price":0.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Subaru-OEM-Valve-Spring-Retainer-Keeper-Subaru-STI-2004-2021-WRX-2002-2014-13210AA020.jpg?v=1744112510"}],"url":"https:\/\/www.importimageracing.com\/collections\/engine-valve-springs-and-retainers.oembed","provider":"Import Image Racing","version":"1.0","type":"link"}