{"product_id":"manley-performance-platinum-series-subaru-wrx-sti-eh257-piston-set-99-75mm-bore-8-5-1-compression-extreme-duty-design","title":"Manley Performance Platinum Series Subaru WRX\/STI EH257 Piston Set - 99.75mm Bore, 8.5:1 Compression, Extreme Duty Design","description":"Our signature \"Platinum Series\" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.\nManley Piston Set, PIST-SUBARU 99.75mm\/1.209 CD\/DIS E\/D.\n\u003cul\u003e\n  \u003cli\u003eChrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff\/DLC alloys, providing additional durability.\u003c\/li\u003e\n  \u003cli\u003eUnique Fixturing: Manley's unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.\u003c\/li\u003e\n  \u003cli\u003eExacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.\u003c\/li\u003e\n  \u003cli\u003eCam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.\u003c\/li\u003e\n  \u003cli\u003e2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eElevate your Subaru WRX or STI engine with the Manley Performance Platinum Series EH257 piston set, engineered for high-performance and durability. Crafted from premium 2618 alloy forgings, these pistons offer exceptional strength and resistance to stress under demanding conditions. The design features proven cam and barrel (skirt) profiles that generate significant power while maintaining gentle contact with the cylinder walls, promoting longevity and consistent performance. \u003cbr\u003eManley's precise manufacturing process includes unique fixturing that allows for skirt turning and ring groove machining in a single operation, ensuring perfect ring groove to skirt squareness for optimal sealing. The pistons adhere to strict standards for ring lands and grooves, enhancing ring seal integrity and translating to increased power output. \u003cbr\u003eStandard-equipped chrome moly wrist pins provide reliable durability, with optional upgrades to 9310 or Turbo Tuff\/DLC alloys available for additional strength. These pistons are designed with enhanced features such as moly skirt coatings on select part numbers, further reducing wear and friction. Please note that these pistons are not CARB approved and require carb acknowledgment during installation. They are suitable for air freight shipping and are intended for automotive applications, ensuring professional-grade quality for serious tuners and engine builders.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e2618 alloy forgings for superior strength and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCam and barrel (skirt) profiles designed for high power output with minimal cylinder wall wear\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUnique fixturing for precise skirt turning and ring groove machining\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eExacting ring lands and grooves for enhanced sealing and efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStandard chrome moly wrist pins with optional upgrades to 9310 or Turbo Tuff\/DLC alloys\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMoly skirt coatings on select part numbers for reduced wear and friction\u003c\/li\u003e\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbdoy\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbdoy\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":53602607694097,"sku":"632202CE-4","price":887.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/3830\/0689\/files\/7feb5d979e66d95b61c84ea1dfd2df1c_1988481c-4dc8-422c-a8b1-4d06ed43c419.jpg?v=1779950245","url":"https:\/\/shoprenegade.com\/products\/manley-performance-platinum-series-subaru-wrx-sti-eh257-piston-set-99-75mm-bore-8-5-1-compression-extreme-duty-design","provider":"Renegade Speed by Renegade Racing \u0026 Performance","version":"1.0","type":"link"}