CP Forged 99.75mm Bore / 9.0:1 Comp Pistons & Rings WRX / STI Subaru Turbo Models EJ255 / EJ257 2004-2021 Type_Exhaust Headers Part NumbeR: IS-SSH-NS13V2

Part NumbeR: IS-SSH-NS13V2

This system will enable you to make changes at the track to truly fine tune the high speed handling of your race car

Out-flows factory valves for improved throttle response

but will tighten as the flywheel heats up and the aluminum expands

Monoloc's hardened chrome-moly steel construction will provide years of service

CP Forged 99.75mm Bore / 9.0:1 Comp Pistons & Rings WRX / STI Subaru Turbo Models EJ255 / EJ257 2004-2021 Type_Exhaust Headers Part NumbeR: IS-SSH-NS13V2Part #: SC7426 CP WRX and STI forged pistons feature superb ring seal, higher vacuum, lower blow by, greater durability and increased horsepower and torque through the power band. Better yet, peak horsepower is retained through the life of the piston rings. This is achieved by lightweight forgings and CP's exclusive machining techniques and processes. CP's commitment to racing is reflected in every piston they produce. CP is dedicated to superior