{"product_id":"cp-pistons-04-12-impreza-wrx-sti-piston-and-ring-set-99-75-mm-bore-8-2-1-compression-ratio","title":"CP Pistons [04-12 Impreza WRX STI] Piston and Ring Set - 99.75 mm Bore, 8.2:1 Compression Ratio","description":"CP Piston \u0026amp; Ring Set for Subaru EJ257 WRX STi - Bore (99.75mm) - Size (0.25mm)  - CR (8.2)\n\u003cp\u003eUpgrade your Subaru EJ257 engine rebuild with the CP Pistons cppSC7422-4 piston and ring set. Designed for compatible 2004-2012 Subaru Impreza WRX STI applications, this set features a 99.75 mm bore size, 0.25 mm oversize specification, and an 8.2:1 compression ratio.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApplication: Subaru EJ257 engines in compatible 2004-2012 Impreza WRX STI models\u003c\/li\u003e\n\u003cli\u003eSpecification: 99.75 mm bore with 0.25 mm oversize sizing and 8.2:1 compression ratio\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eManufactured by CP Pistons, this piston and ring set is intended for performance-oriented engine rebuilding and replacement applications. The set is designed around the EJ257 platform and should be matched with the appropriate cylinder preparation, clearances, connecting rods, and supporting engine components. Confirm the exact vehicle, engine configuration, and required piston-to-wall clearance before installation.\u003c\/p\u003e\n\u003cp\u003eThis product is not approved for use on pollution-controlled vehicles under applicable California Air Resources Board requirements. Verify emissions compliance and local regulations before purchasing or installing. Professional installation and measurement are recommended to ensure proper fitment and reliable engine operation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Fits compatible 2004-2012 Subaru Impreza WRX STI models equipped with the EJ257 engine\u003c\/li\u003e\n\u003cli\u003eBore: 99.75 mm\u003c\/li\u003e\n\u003cli\u003eOversize: 0.25 mm\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 8.2:1\u003c\/li\u003e\n\u003cli\u003eBrand: CP Pistons\u003c\/li\u003e\n\u003cli\u003ePart Number: cppSC7422-4\u003c\/li\u003e\n\u003cli\u003eEmissions Compliance: Not CARB approved; verify applicable regulations before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: true\u003cbr\u003e\nCarb Acknowledgement Required: true\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Unknown\u003cbr\u003e\nPart Type: automotive\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nRegular Stock: t\u003cbr\u003e\nUnits Per Sku: 1\u003cbr\u003e\nFitment:\u003cbr\u003e\nSubaru Impreza WRX STI 2004\u003cbr\u003e\nSubaru Impreza WRX STI 2005\u003cbr\u003e\nSubaru Impreza WRX STI 2006\u003cbr\u003e\nSubaru Impreza WRX STI 2007\u003cbr\u003e\nSubaru Impreza WRX STI 2008\u003cbr\u003e\nSubaru Impreza WRX STI 2009\u003cbr\u003e\nSubaru Impreza WRX STI 2010\u003cbr\u003e\nSubaru Impreza WRX STI 2011\u003cbr\u003e\nSubaru Impreza WRX STI 2012\u003cbr\u003e\nSubaru Impreza WRX STI Limited 2007\u003cbr\u003e\nSubaru Impreza WRX STI Limited 2011\u003cbr\u003e\nSubaru Impreza WRX STI Limited 2012\u003cbr\u003e\nSubaru Impreza WRX STI Special Edition 2010","brand":"CP Pistons","offers":[{"title":"Default Title","offer_id":47258260078694,"sku":"cppSC7422-4","price":885.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/8703\/7237\/files\/group-6f069080-fe90-4d37-889e-5717ef824c05-800_71c4bd68-6392-4d36-8306-e449f104ba87.jpg?v=1790177208","url":"https:\/\/jdmuscleusa.com\/products\/cp-pistons-04-12-impreza-wrx-sti-piston-and-ring-set-99-75-mm-bore-8-2-1-compression-ratio","provider":"JDMuscle","version":"1.0","type":"link"}