{"product_id":"manley-04-subaru-wrx-sti-eh257-100-0mm-bore-50mm-size-8-5-1-dish-extreme-duty-piston-set","title":"Manley 04+ Subaru WRX\/STI EH257 100.0mm Bore +.50mm Size 8.5:1 Dish Extreme Duty Piston Set","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, SUBARU 100mm\/1.209 CD\/DISH Extreme Duty\nManley Piston Set, SUBARU 100mm\/1.209 CD\/DISH 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\u003eThe Manley Performance Subaru WRX\/STI 100mm Bore Extreme Duty Piston Set is engineered for high-performance applications, offering durability and power for professional engine builders and tuners. Crafted from domestic 2618 alloy forgings, these pistons provide superior strength and reliability under demanding conditions. The design includes proven cam and barrel (skirt) profiles that generate substantial power while maintaining gentle interaction with cylinder walls, ensuring longevity and optimal performance. The pistons feature moly skirt coatings on select part numbers, reducing friction and enhancing wear resistance for extended engine life.\u003cbr\u003eEach piston set is equipped with premium chrome moly wrist pins as standard, with options for upgraded 9310 or Turbo Tuff\/DLC alloys for increased durability in high-stress environments. Unique fixturing during manufacturing allows for precise skirt turning and ring groove machining in a single operation, resulting in exceptional ring land and groove accuracy. This meticulous process ensures superior ring seal, which translates into improved compression and power output. The pistons are designed with exacting ring lands and grooves, further optimizing sealing efficiency and engine performance.\u003cbr\u003eIdeal for those seeking a robust, high-performance piston for Subaru WRX or STI engines, the Manley Extreme Duty Piston Set is a reliable choice for both daily driving and competitive racing. This set is not carb approved and requires carb acknowledgment, ensuring compliance with specific application standards. With a focus on strength, precision, and performance, these pistons help deliver the power and durability required by professional tuners and engine builders alike.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e2618 alloy forging for superior strength and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCam and barrel (skirt) profiles designed for power output and cylinder wall protection\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePremium chrome moly wrist pins included, with upgrade options for enhanced durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUnique fixturing allows for single-operation skirt turning and ring groove machining\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eExacting ring lands and grooves for improved ring seal and compression\u003c\/li\u003e\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":53855293374780,"sku":"man632205CE-4","price":1019.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/246bd78ef3a2c60b8f9bc4524311a257.jpg?v=1784847537","url":"https:\/\/necycleshop.com\/products\/manley-04-subaru-wrx-sti-eh257-100-0mm-bore-50mm-size-8-5-1-dish-extreme-duty-piston-set","provider":"NE Cycle Shop","version":"1.0","type":"link"}