{"product_id":"subaru-oem-dual-avcs-camshafts-08-10-sti-13031aa710","title":"Subaru OEM Dual AVCS Camshafts (08-10 STI) | 13031AA710","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Genuine Subaru OEM Dual AVCS Camshaft Set (Part #13031AA710) is the factory-original camshaft assembly designed specifically for the 2008–2010 Subaru Impreza WRX STI. Built to exact OEM specifications, these camshafts are engineered to work seamlessly with the EJ257 engine's Active Valve Control System (AVCS), delivering the precise variable valve timing performance your STI was factory-tuned to produce. Choosing genuine OEM camshafts ensures correct fitment, factory-level reliability, and compatibility with your engine's AVCS hardware — no modifications or adapters required.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Subaru OEM Part\u003c\/strong\u003e — Manufactured to exact factory specifications; identical to the camshafts installed on the assembly line for guaranteed compatibility and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual AVCS Compatibility\u003c\/strong\u003e — Engineered for the EJ257's Dual Active Valve Control System, enabling precise intake and exhaust variable valve timing for optimized power delivery and efficiency across the RPM range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact-Fit Guarantee\u003c\/strong\u003e — Direct OEM replacement with no machining, modification, or shimming required; bolt-in fitment for 2008–2010 STI applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Lobe Profile\u003c\/strong\u003e — Maintains the factory-correct cam lobe geometry for stock power output, idle quality, and emissions compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubaru Factory Warranty\u003c\/strong\u003e — Backed by Subaru's OEM parts warranty, providing peace of mind that aftermarket alternatives simply cannot match.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Materials\u003c\/strong\u003e — Cast to OEM standards with surface hardening treatments for long-term wear resistance under high-performance STI operating conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x Genuine Subaru OEM Dual AVCS Camshaft (Part #13031AA710)\u003c\/li\u003e\n\u003cli\u003eOEM packaging with Subaru part number verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Please verify whether this listing includes the intake camshaft, exhaust camshaft, or the complete set. Confirm with your Subaru parts diagram for your specific application before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e13031AA710\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGenuine Subaru OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003ctd\u003eEJ257 (2.5L Turbocharged Boxer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem\u003c\/th\u003e\n\u003ctd\u003eDual AVCS (Active Valve Control System)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003e2008–2010 Subaru Impreza WRX STI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOEM Part Number\u003c\/th\u003e\n\u003ctd\u003e13031AA710\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew, Genuine OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis genuine Subaru OEM camshaft (Part #13031AA710) is compatible with the following vehicles:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTrim \/ Engine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza WRX STI\u003c\/td\u003e\n\u003ctd\u003eSTI \/ EJ257 2.5L Turbo Dual AVCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza WRX STI\u003c\/td\u003e\n\u003ctd\u003eSTI \/ EJ257 2.5L Turbo Dual AVCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza WRX STI\u003c\/td\u003e\n\u003ctd\u003eSTI \/ EJ257 2.5L Turbo Dual AVCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Always verify fitment using your vehicle's VIN and Subaru's official parts catalog. The 2008–2010 STI uses the Dual AVCS variant of the EJ257 — confirm your engine configuration before purchasing. Earlier (2004–2007) STI models use a different camshaft design and are \u003cem\u003enot\u003c\/em\u003e compatible with this part number.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eCamshaft replacement on the EJ257 engine is an advanced procedure requiring removal of the cylinder heads, valve train components, and AVCS oil control solenoids. Professional installation by a certified Subaru technician or experienced boxer-engine specialist is strongly recommended. Proper torque sequences, cam timing alignment, and AVCS actuator inspection are critical to a successful installation. Always replace cam journals, inspect oil passages, and verify AVCS solenoid function during installation. Refer to the Subaru EJ257 factory service manual for complete torque specifications and step-by-step procedures.\u003c\/p\u003e","brand":"Subaru OEM","offers":[{"title":"Default Title","offer_id":43159559241824,"sku":"sub13031AA710","price":316.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/Subaru-OEM-Dual-AVCS-Camshafts-08-10-STI-13031AA710.jpg?v=1791486120","url":"https:\/\/www.importimageracing.com\/products\/subaru-oem-dual-avcs-camshafts-08-10-sti-13031aa710","provider":"Import Image Racing","version":"1.0","type":"link"}