{"product_id":"je-pistons-sub-sti-ej257-99-5mm-bore-cr-8-5-kit-set-of-4-pistons","title":"JE Pistons SUB STI EJ257 99.5mm Bore CR 8.5 Kit Forged Piston Set — Fits 2002-2012 Subaru Impreza WRX\/STI","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout JE Pistons\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eJE Pistons engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full JE Pistons lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/lvBc35osbyc\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eJE Pistons Forged Piston Kit for Subaru STI EJ257 (99.5mm Bore, CR 8.5)\u003c\/h2\u003e\n\u003cp\u003eElevate your Subaru STI's performance with this premium forged piston kit from JE Pistons, engineered for the EJ257 engine. Featuring a 99.5mm bore and a compression ratio of 8.5:1, these pistons are designed to withstand the rigors of high-performance driving and racing applications. Crafted in the USA from high-quality 2618 aluminum, they offer exceptional tensile strength and durability.\u003c\/p\u003e\n\u003ch3\u003eKey Features and Benefits:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuperior Material:\u003c\/strong\u003e Forged from 2618 aluminum for maximum strength and resistance to extreme conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Design:\u003c\/strong\u003e Specifically designed for the EJ257 engine to ensure optimal performance and longevity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReduced Friction:\u003c\/strong\u003e Proprietary Forged Side Relief (FSR) design minimizes friction and power loss, while also reducing weight.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Durability:\u003c\/strong\u003e Features skirt coating (application dependent) to reduce wear and noise, and an accumulator groove for improved ring seal and consistent power delivery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings for a hassle-free installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProudly Made in USA:\u003c\/strong\u003e Ensures top-tier manufacturing quality and reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis kit is an ideal upgrade for enthusiasts seeking to push the limits of their Subaru WRX or STI. Ensure optimal engine health and power output with pistons built for performance. Discover the difference quality engineering makes with JE Pistons at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;\"\u003e\n\u003ch3 style=\"margin:0 0 8px;\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:0.92em;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f0f0f0;text-align:left;\"\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eYears\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eTrim\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2008\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eForester\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSports 2.5 XT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2002-2012\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eImpreza\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eWRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2004-2012\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eImpreza\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eWRX STI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2006-2007\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eImpreza\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eWRX Limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2006-2007\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eImpreza\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eWRX TR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2007\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eImpreza\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eWRX STI Limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2009-2012\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eImpreza\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eWRX Premium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2010\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eImpreza\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eWRX STI Special Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2010-2012\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eImpreza\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eWRX Limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2010-2011\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eLegacy\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2.5GT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular JE Pistons products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/je-pistonspiston-ring-set-4-060\" style=\"color:#0066cc;text-decoration:none;\"\u003eJE Pistons Race Series Piston Ring Set 4.060 Bore — File Fit Plasma Moly\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/je-pistonswrist-pin-52-series-1-990-2-930-180-161-gram-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eJE Pistons 52 Series Wrist Pin .990 x 2.930 — High-Strength Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/je-pistons-suzuki-drz-400-inv-dome-piston-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eJE Pistons DRZ-400 INV Dome Piston Kit — Fits 2000-2016 Suzuki DR-Z400, 2003-2006 Kawasaki\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/je-pistons-vw-2-8liter-vr6-kit-set-of-6-pistons\" style=\"color:#0066cc;text-decoration:none;\"\u003eJE Pistons VW 2.8L VR6 Forged Piston Kit — Fits 1992-1999 VW Corrado Golf Jetta Passat\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/je-pistons-vw-2-8liter-vr6-kit-set-of-6-pistons-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eJE Pistons VW 2.8L VR6 Forged Piston Kit — Fits 1992-1999 VW Corrado Golf Jetta Passat\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"JE Pistons SUB STI EJ257 99.5mm Bore CR 8.5 Kit Forged Piston Set \\u2014 Fits 2002-2012 Subaru Impreza WRX\/STI\",\"description\":\"Upgrade your Subaru STI EJ257 with JE Pistons' 99.5mm Forged Piston Kit (CR 8.5). Experience enhanced performance and durability. Shop now at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"JE Pistons\"},\"mpn\":\"291061\",\"url\":\"https:\/\/ggcracing.com\/products\/je-pistons-sub-sti-ej257-99-5mm-bore-cr-8-5-kit-set-of-4-pistons\",\"offers\":{\"@type\":\"Offer\",\"price\":\"899.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/je-pistons-sub-sti-ej257-99-5mm-bore-cr-8-5-kit-set-of-4-pistons\",\"sku\":\"JEP291061\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"JE Pistons\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=JE+Pistons\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"JE Pistons SUB STI EJ257 99.5mm Bore CR 8.5 Kit Forged Piston Set \\u2014 Fits 2002-2012 Subaru Impreza WRX\/STI\",\"item\":\"https:\/\/ggcracing.com\/products\/je-pistons-sub-sti-ej257-99-5mm-bore-cr-8-5-kit-set-of-4-pistons\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the JE Pistons SUB STI EJ257 99.5mm Bore CR 8.5 Kit Forged Piston Set \\u2014 Fits 2002-20 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Use the fitment table above to confirm.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for JE Pistons?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the JE Pistons SUB STI EJ257 99.5mm Bore CR 8.5 Kit Forged Piston Set \\u2014 Fits 2002-20?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"JE Pistons","offers":[{"title":"Default Title","offer_id":41454342471764,"sku":"JEP291061","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/dc0a484d739a19bbe8cf23f18435efd8.jpg?v=1721662977","url":"https:\/\/ggcracing.com\/en-co\/products\/je-pistons-sub-sti-ej257-99-5mm-bore-cr-8-5-kit-set-of-4-pistons","provider":"GGCRACING INC","version":"1.0","type":"link"}