Durable Manley 04+ Wrx Sti (ej257) Size (std) Stroke (79mm) Bore (99.50mm Grade B) Single Piston W/ Rings With A 75% Price Cut [xPm4NQ5O]

Manley Pistons for WRX STi (EJ257)

Experience unparalleled performance with Manley's premium pistons designed specifically for the 04+ WRX STi (EJ257) engine. These pistons are engineered to deliver exceptional strength and durability, ensuring your engine reaches its full potential. Crafted from high-quality 2618 alloy forgings, these pistons are built to withstand extreme conditions and enhance your vehicle's overall performance.

• Superior Strength: Our pistons are forged from domestic 2618 alloy, offering superior strength and performance for your high-performance engine.
• Chrome Moly Wrist Pins: Standard with premium Chrome Moly wrist pins, these pistons come with the option for upgraded wrist pins in 9310 and Turbo Tuff/DLC alloys for additional durability.

Engineered for Performance

Manley's pistons are not just about strength; they are designed to optimize engine performance. The exacting ring lands and grooves ensure a superior ring seal, resulting in more power and efficiency. The cam and barrel profiles are meticulously designed to generate substantial power while being gentle on cylinder walls, providing a perfect balance between performance and longevity.

• Exacting Precision: Our pistons adhere to strict standards for ring lands and grooves, enhancing ring seal and overall engine performance.
• Cam and Barrel Profiles: Designed to maximize power output while minimizing wear on cylinder walls, ensuring a long-lasting engine life.

Unique Manufacturing Process

At Manley, we take pride in our unique manufacturing process that allows for skirt turning and ring groove machining in a single operation. This innovative fixturing ensures ultimate ring groove to skirt squareness, resulting in a precision-engineered piston that is second to none. With Manley pistons, you can trust in the quality and performance that has made us a leader in the automotive industry.

• Unique Fixturing: Our proprietary fixturing ensures the highest level of precision and consistency in manufacturing.
• Single Piston w/ Rings: Our complete piston package includes all necessary components for a seamless installation and optimal engine performance.