Manley Performance EJ257 STD Stroke 99.5mm Bore 8.5:1 Dish Piston Set for Subaru Impreza 2004-2012

Description

Upgrade your Subaru Impreza’s engine with the Manley Performance EJ257 piston set, designed for exceptional durability and performance. Featuring the signature Platinum Series pistons, this set is crafted from high-quality 2618 alloy forgings, providing superior strength and heat resistance essential for high-performance applications. The pistons are engineered with proven cam and barrel skirt profiles that optimize power output while reducing stress on the cylinder walls, ensuring long-lasting reliability. Chrome Moly wrist pins come standard, offering excellent toughness, with optional upgrades to 9310 and Turbo Tuff/DLC alloys for enhanced durability under demanding conditions.

Precision manufacturing is a hallmark of Manley pistons, with strict adherence to exacting ring lands and grooves for better ring seal and increased power. The pistons feature unique fixturing technology that allows for skirt turning and ring groove machining in a single operation, resulting in improved squareness between the ring grooves and skirt for optimal performance. These pistons are designed to fit 2004-2012 Subaru Impreza models equipped with the EJ257 engine, making them an ideal choice for both enthusiasts and professional tuners. Designed to meet the specifications of high-performance builds, the set is not CARB approved and requires acknowledgment of Prop 65 compliance.

Constructed with durability and precision in mind, this piston set is perfect for those seeking to boost their vehicle’s performance while maintaining reliable operation. Whether you’re rebuilding or upgrading, the Manley EJ257 pistons offer the quality and performance needed to maximize your engine’s potential while ensuring consistent power delivery and longevity.

Features:

• 2618 alloy forgings for superior strength and durability

• Proven cam and barrel skirt profiles to optimize power

• Chrome Moly wrist pins included, with optional upgrades to 9310 and DLC alloys

• Exacting ring lands and grooves for enhanced ring seal and power

• Unique fixturing for skirt turning and ring groove machining in a single step

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