Manley Performance EJ257 STD Stroke 99.5mm Bore Subaru WRX STi Dish Piston Set with Rings

Description

The Manley Performance EJ257 piston set is engineered for high-performance Subaru WRX STi engines, specifically designed to enhance power and durability. Crafted from premium 2618 alloy forgings, these pistons deliver exceptional strength and resilience under demanding conditions. The forged construction ensures consistent performance and longevity, making them ideal for both street and race applications. Each piston features precisely engineered cam and barrel profiles that maximize power output while maintaining a gentle impact on cylinder walls, promoting engine longevity.

Equipped with chrome moly wrist pins as standard, with upgrade options to 9310 and Turbo Tuff/DLC alloys for increased durability, these pistons meet the demands of professional engine builders and tuners. The pistons incorporate strict standards for ring lands and grooves, which enhance seal integrity and improve overall engine efficiency. Unique fixturing technology allows for skirt turning and ring groove machining in a single operation, ensuring consistency and optimal ring-to-skirt alignment. These features contribute to improved compression, power output, and reliable performance over time.

Designed to fit 2004-2007 Subaru Impreza models with EJ257 engines, this piston set provides a reliable upgrade for enthusiasts seeking increased horsepower and engine durability. The set includes high-quality rings designed for optimal sealing and performance. Please note that these pistons are not CARB approved and require acknowledgment of this status prior to installation. With a focus on quality and performance, the Manley EJ257 piston set is a trusted choice for serious tuners and professional engine builders seeking to maximize their Subaru’s potential.

Features:

• 2618 alloy forging for superior strength and performance

• Chrome moly wrist pins standard, with upgrade options available

• Precise ring lands and grooves for enhanced sealing and power

• Cam and barrel profiles designed for power and cylinder wall protection

• Unique fixturing for accurate skirt turning and ring groove machining

Fitment:
Subaru Impreza WRX 2006
Subaru Impreza WRX 2007
Subaru Impreza WRX 2008
Subaru Impreza WRX 2009
Subaru Impreza WRX 2010
Subaru Impreza WRX 2011
Subaru Impreza WRX 2012
Subaru Impreza WRX Limited 2006
Subaru Impreza WRX Limited 2007
Subaru Impreza WRX Limited 2010
Subaru Impreza WRX Limited 2011
Subaru Impreza WRX Limited 2012
Subaru Impreza WRX Premium 2009
Subaru Impreza WRX Premium 2010
Subaru Impreza WRX Premium 2011
Subaru Impreza WRX Premium 2012
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
Subaru Impreza WRX TR 2006
Subaru Impreza WRX TR 2007