{"product_id":"310927-je-pistons-and-rings-99-5-bore-79mm-stroke-8-8-1-comp-subaru-wrx-sti-ej257-billet-fsr-2004-2021","title":"JE Pistons and Rings 99.5 Bore 79mm Stroke 8.8:1 Comp Subaru WRX \/ STI EJ257 BILLET FSR 2004-2021","description":"Part #: 310927\u003cbr\u003e \u003cbr\u003e\u003cp\u003eJE Pistons is proud to release the first billet racing pistons for Subaru EJ257 engines including your WRX and STI! Originally created for the Crawford Performance Unlimited AWD Time Attack Subaru and Ken Block's Gymkhana racecar, these pistons are now available to the public. The new pistons are 100% CNC machined from high quality 2618-T6 wrought aluminum bar stock and are specifically designed for high horsepower road and drag race engines. The pistons feature internal and external bracing for improved durability and strength. A unique \"donut dish\" crown and application-specific under crown profile properly redistributes heat and reduces stress concentrations experienced in high horsepower Subaru engines. Unlike forged pistons, the billet pistons are machined on every surface allowing for all unnecessary weight to be removed during manufacturing. The result of this new process is a weight reduction of up to 32 grams compared to other piston designs! High quality 9310 steel wrist pins and JE Pro Seal Rings are included. For severe racing applications, upgraded Diamond Like Carbon (DLC) coated wrist pins are available. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cp\u003eFitment:\u003cbr\u003e\u003c\/p\u003e\n \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/nedry_gif_480x480.gif?v=1659023322\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/nedry_gif_480x480.gif?v=1659023322\"\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003cbr\u003e SUBARU EJ257 BILLET FSR \u003cbr\u003eSTD Bore: 99.5mm \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e100% CNC machined billet piston\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for high horsepower Subaru racing engines up to 1200hp\u003c\/li\u003e\n\u003cli\u003eOnly 392 grams! Up to 32 grams lighter than other aftermarket pistons\u003c\/li\u003e\n\u003cli\u003eManufactured from high quality, certified 2618-T6 aluminum alloy\u003c\/li\u003e\n\u003cli\u003eInternal and external strut braces\u003c\/li\u003e\n\u003cli\u003ePremium 9310 steel wrist pins included (.905 x 2.250\"), DLC upgrade available\u003c\/li\u003e\n\u003cli\u003eJE Pro Seal Piston Rings Included (1.2, 1.2, 2.5mm)\u003c\/li\u003e\n\u003cli\u003eTru Arc locks for easy installation\u003c\/li\u003e\n\u003cli\u003eIncludes 4 piston \/ 4 rings\u003c\/li\u003e\n\u003c\/ul\u003e \n\n","brand":"JE Pistons","offers":[{"title":"Default Title","offer_id":44843266643,"sku":"jep310927","price":1799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/JE-Pistons-and-Rings-99_5-Bore-79mm-Stroke-8_81-Comp-Subaru-WRX-STI-EJ257-BILLET-FSR-2004-2021.jpg?v=1744295175","url":"https:\/\/www.importimageracing.com\/products\/310927-je-pistons-and-rings-99-5-bore-79mm-stroke-8-8-1-comp-subaru-wrx-sti-ej257-billet-fsr-2004-2021","provider":"Import Image Racing","version":"1.0","type":"link"}