JE Pistons and Rings 100 Bore 79mm Stroke 9.5:1 Comp Subaru WRX / STI EJ257 2004-2021 vendor_Magnaflow Performance Heavy-Duty reinforced pressure plate

Heavy-Duty reinforced pressure plate

durability and corrosion resistance

2004-2013 Forester XT

Part #: SEVI-1014-8

JE Pistons and Rings 100 Bore 79mm Stroke 9.5:1 Comp Subaru WRX / STI EJ257 2004-2021 vendor_Magnaflow Performance Heavy-Duty reinforced pressure platePart #: 310938 JE piston 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: SUBARU EJ257 TIME ATTACK "FSR" NOTE: NOW COMPATIBLE WITH EITHER OEM OR AFTERMARKET RODS! SOME BLOCKS MAY REQURE CLEARANCING FOR