JE Pistons Subaru EJ257 Block and EJ20 Head 100mm Bore Forged Piston Kit

Description

Upgrade your Subaru Impreza with the JE Pistons SUB STI EJ257 Block and EJ20 Head 100mm Bore Forged Piston Kit. Designed specifically for high-performance applications, this set includes four precision-machined pistons crafted from high-strength 2618 aluminum, ensuring durability under demanding conditions. Each piston features a proprietary Forged Side Relief (FSR) forging design that minimizes friction and reduces power loss by decreasing skirt width and shortening the wrist pin, resulting in improved efficiency and performance.
The pistons are equipped with an accumulator groove (application-dependent) to help reduce pressure from combustion gases, which diminishes ring fluttering and enhances ring seal for consistent power delivery. A skirt coating (also application-dependent) reduces friction and wear while helping to lower operating noise, contributing to smoother engine operation. These pistons are engineered for each specific engine and use case, providing optimized performance and longevity in racing or high-performance street driving.
Each kit includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings to ensure a complete and reliable upgrade. Crafted and machined entirely in the USA, JE Pistons are a proven choice for enthusiasts seeking maximum durability and performance. This piston kit is compatible with various Subaru Impreza models from 2004 to 2007, making it an ideal upgrade for those looking to enhance their vehicle’s power and reliability without compromising quality.
Please note that this product is not CARB approved and requires acknowledgment of Prop 65 warning. It is not suitable for air freight shipping and is intended solely for automotive use. Trust JE Pistons to deliver the performance and durability needed for your next racing or high-performance build.

Features:

• Proprietary Forged Side Relief (FSR) forging design minimizes friction and reduces power loss

• Accumulator groove helps reduce pressure from combustion gases, improving ring seal

• Skirt coating reduces friction, wear, and operating noise

• Forged in the USA from high-strength 2618 aluminum for durability

• Engineered specifically for each engine and application for optimal performance

• Includes high-quality wrist pins, locks, and JE Pro Seal piston rings

Fitment:
Subaru Impreza 2.5i 2006
Subaru Impreza 2.5i 2007
Subaru Impreza 2.5i 2008
Subaru Impreza Outback 2002
Subaru Impreza Outback 2003
Subaru Impreza Outback 2004
Subaru Impreza Outback Sport 2005
Subaru Impreza Outback Sport 2006
Subaru Impreza Outback Sport 2007
Subaru Impreza Outback Sport 2008
Subaru Impreza RS 2002
Subaru Impreza RS 2003
Subaru Impreza RS 2004
Subaru Impreza RS 2005
Subaru Impreza TS 2002
Subaru Impreza TS 2003
Subaru Impreza TS 2004
Subaru Impreza WRX 2002
Subaru Impreza WRX 2003
Subaru Impreza WRX 2004
Subaru Impreza WRX 2005
Subaru Impreza WRX 2006
Subaru Impreza WRX 2007
Subaru Impreza WRX 2008
Subaru Impreza WRX Limited 2006
Subaru Impreza WRX Limited 2007
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 Limited 2007
Subaru Impreza WRX TR 2006
Subaru Impreza WRX TR 2007