JE Pistons and Rings 99.75 Bore 83mm Stroke 8.5:1 Comp Subaru WRX / STI EJ257 2004-2021 Vehicle Model_WRX STI The Forge blow off valve

The Forge blow off valve is made from billet aluminum

Now when the coilover assembly turns

segmented Carbon-Kevlar disc

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY EMISSION CONTROLLED MOTOR VEHICLE

With laser cut and powder coated 5052 Aluminum

JE Pistons and Rings 99.75 Bore 83mm Stroke 8.5:1 Comp Subaru WRX / STI EJ257 2004-2021 Vehicle Model_WRX STI The Forge blow off valvePart #: 296352 JE piston and ring designs are specifically engineered for extreme applications up to, and including professional competition for your Subaru WRX and STI. In this environment, the higher compression ratios, highest boost or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy. Fitment: JE Pistons and Rings for SUBARU 2004+ IMPREZA STI , 2005+ FORESTER XT, LEGACY GT, 2006+ WRX EJ257 Features: 2618 T6 high