{"product_id":"manley-performance-man612102c-4-04-subaru-wrx-sti-ej257-platinum-series-piston-set","title":"Manley Performance man612102C-4 - 04+ Subaru WRX STi EJ257 Platinum Series 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.\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 man612102C-4 Platinum Series piston set is designed for the Subaru WRX STi EJ257 engine. This set features a standard-stroke configuration, a 99.75 mm bore, a +.25 mm bore size, and a 9.8:1 dish compression ratio. The pistons use domestic 2618 alloy forgings for strength and performance, with cam and barrel skirt profiles designed to support power while being gentle on cylinder walls.\u003c\/p\u003e\u003cp\u003eManley’s manufacturing process uses unique fixturing to machine the skirt and ring grooves in a single operation, helping maintain ring groove-to-skirt squareness. Exacting ring land and groove standards support improved ring seal and power potential. Tool steel wrist pins and moly skirt coatings are included on select part numbers; the provided product information does not specify whether these features apply to this part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Performance Benefits\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2618 Alloy Forgings:\u003c\/strong\u003e Domestic 2618 alloy forgings provide strength and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCam and Barrel Profiles:\u003c\/strong\u003e Skirt profiles support power while being gentle on cylinder walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Ring Groove Machining:\u003c\/strong\u003e Unique fixturing helps maintain ring groove-to-skirt squareness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExacting Ring Lands and Grooves:\u003c\/strong\u003e Strict machining standards support enhanced ring seal and power potential.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Manley Performance\u003c\/li\u003e\n\u003cli\u003ePart Number: man612102C-4\u003c\/li\u003e\n\u003cli\u003eApplication: Subaru WRX STi EJ257\u003c\/li\u003e\n\u003cli\u003eStroke: Standard\u003c\/li\u003e\n\u003cli\u003eBore: 99.75 mm, +.25 mm\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 9.8:1\u003c\/li\u003e\n\u003cli\u003ePiston Type: Dish\u003c\/li\u003e\n\u003cli\u003eProduct Type: Piston set with rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included in the Box\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOne piston set with rings. Fitment data provided lists Subaru Impreza model years 2004, 2005, 2006, 2007, 2009, 2011, and 2012. Verify engine and application details before installation. This product is not CARB approved, and acknowledgment is required.\u003c\/p\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2004 Subaru Impreza WRX STI\u003cbr\u003e\n2005 Subaru Impreza WRX STI\u003cbr\u003e\n2006 Subaru Impreza WRX STI\u003cbr\u003e\n2007 Subaru Impreza WRX STI\u003cbr\u003e\n2007 Subaru Impreza WRX STI Limited\u003cbr\u003e\n2008 Subaru Impreza WRX STI\u003cbr\u003e\n2009 Subaru Impreza WRX STI\u003cbr\u003e\n2010 Subaru Impreza WRX STI\u003cbr\u003e\n2010 Subaru Impreza WRX STI Special Edition\u003cbr\u003e\n2011 Subaru Impreza WRX STI\u003cbr\u003e\n2011 Subaru Impreza WRX STI Limited\u003cbr\u003e\n2012 Subaru Impreza WRX STI\u003cbr\u003e\n2012 Subaru Impreza WRX STI Limited\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\u003ctbody\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\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":68052324614396,"sku":"612102C-4","price":770.92,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/group-6fb279de-3abc-410e-9607-f540300bf0a1-800_17767538-1ca0-43c5-a0c4-4bcff64bf3bf.jpg?v=1793468895","url":"https:\/\/diycustoms.store\/products\/manley-performance-man612102c-4-04-subaru-wrx-sti-ej257-platinum-series-piston-set","provider":"diycustoms.store","version":"1.0","type":"link"}