JE Pistons and Rings 99.75 Bore 8.5:1 Comp Subaru WRX / STI EJ257 Block W/ EJ20 Head 2004-2021 Vehicle Model_370Z performance-inspired engine bay layout

performance-inspired engine bay layout

Results a decrease in valve cover pressure prolonging engine life and increasing performance

Increase structural rigidity

Part #: BC0111

More roll stiffness means less body "lean"

JE Pistons and Rings 99.75 Bore 8.5:1 Comp Subaru WRX / STI EJ257 Block W/ EJ20 Head 2004-2021 Vehicle Model_370Z performance-inspired engine bay layoutPart #: 296349 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