Manley Performance EJ257 Platinum Series Pistons for Subaru WRX STI 2004-2007, Part Number 612100C-4

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.

• Chrome 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.
• Unique Fixturing: Manley's unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.
• Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.
• Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
• 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.

Upgrade your Subaru WRX STI with the Manley Performance Platinum Series pistons designed specifically for EJ257 engines from 2004 to 2007. These pistons feature premium 2618 alloy forgings, providing exceptional strength and durability for high-performance applications. The proven cam and barrel skirt profiles optimize power output while minimizing wear on cylinder walls, making them suitable for both street and track use. Moly skirt coatings on select part numbers further enhance wear resistance, ensuring long-lasting performance even under demanding conditions.
Manley's pistons come equipped with chrome moly wrist pins as standard, offering superior strength and reliability. For select models, optional upgrades to 9310 and Turbo Tuff/DLC alloys are available, providing additional durability for high-stress tuning scenarios. The unique fixturing process used during manufacturing allows for precise skirt turning and ring groove machining in a single operation, ensuring perfect ring land and groove squareness. This meticulous process improves ring seal and combustion efficiency, translating to more power and better engine response.
Designed with exacting standards, these pistons feature carefully engineered ring lands and grooves to maximize sealing and minimize blow-by. The cam and barrel profiles are crafted to generate substantial horsepower while being gentle on the cylinder walls, promoting engine longevity. Suitable for turbocharged setups, these pistons are an ideal upgrade for enthusiasts seeking increased performance and durability from their Subaru EJ257 engine. Trust Manley's expertise and high-quality manufacturing to enhance your vehicle’s engine capabilities for both daily driving and competitive racing.

Features:

• 2618 alloy forgings for superior strength and performance

• Proven cam and barrel skirt profiles optimize power and minimize wear

• Chrome moly wrist pins standard, with optional upgrades to 9310 and Turbo Tuff/DLC alloys

• Unique fixturing enables precise skirt turning and ring groove machining

• Exacting ring land and groove standards for improved sealing and power

Fitment:
2004 Subaru Impreza WRX STI
2005 Subaru Impreza WRX STI
2006 Subaru Impreza WRX
2006 Subaru Impreza WRX Limited
2006 Subaru Impreza WRX STI
2006 Subaru Impreza WRX TR
2007 Subaru Impreza WRX
2007 Subaru Impreza WRX Limited
2007 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2007 Subaru Impreza WRX TR
2008 Subaru Impreza WRX
2008 Subaru Impreza WRX STI
2009 Subaru Impreza WRX
2009 Subaru Impreza WRX Premium
2009 Subaru Impreza WRX STI
2010 Subaru Impreza WRX
2010 Subaru Impreza WRX Limited
2010 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI Special Edition
2011 Subaru Impreza WRX
2011 Subaru Impreza WRX Limited
2011 Subaru Impreza WRX Premium
2011 Subaru Impreza WRX STI
2011 Subaru Impreza WRX STI Limited
2012 Subaru Impreza WRX
2012 Subaru Impreza WRX Limited
2012 Subaru Impreza WRX Premium
2012 Subaru Impreza WRX STI
2012 Subaru Impreza WRX STI Limited

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1