Manley Performance 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size Dish Piston Set

Description

Upgrade your Subaru WRX or STI with the Manley Performance EH257 piston set, designed for high-performance engines requiring precision and durability. Crafted with 2618 alloy forgings, these pistons deliver exceptional strength and resilience under demanding conditions. The use of domestic 2618 alloy ensures optimal performance while maintaining lightweight characteristics for enhanced acceleration and responsiveness. Each piston features meticulously engineered cam and barrel (skirt) profiles that generate substantial power while being gentle on your engine’s cylinder walls, promoting long-term reliability.
Manley’s unique fixturing process allows for efficient skirt turning and ring groove machining, ensuring perfect ring land and groove squareness for maximum sealing and power output. The pistons come equipped with chrome moly wrist pins, providing a robust connection between the piston and connecting rod. For select applications, upgraded wrist pins made from 9310 steel or Turbo Tuff/DLC alloys are available, offering increased durability for high-stress racing environments.
Designed with precise ring lands and grooves, these pistons enhance ring seal and combustion efficiency, which directly translates to improved power and throttle response. Whether you’re building a high-performance street engine or a race-ready setup, the Manley EH257 piston set is engineered to meet and exceed your expectations, ensuring longevity and consistent performance. Please note that these pistons are not CARB-approved, and proper acknowledgment of this is required during installation. Suitable for air freight shipping, these pistons arrive ready for professional installation and tuning, making them an ideal choice for serious engine builders seeking proven quality and performance.

Features:

• 2618 alloy forgings for superior strength and performance

• Cam and barrel (skirt) profiles designed for high power output

• Chrome moly wrist pins included, with upgrade options available

• Precise ring lands and grooves for enhanced sealing

• Unique fixturing allows for efficient machining and ensures ring groove to skirt squareness