JE Pistons and Rings 99.75 Bore 79mm Stroke 9.5:1 Comp Subaru WRX / STI EJ257 2004-2021 Vehicle Model_IS 250 Includes V-Band and weld on

Includes V-Band and weld on adapter

The twin plate clutches are rated for above 500hp to 750hp

Flows 340 liters per hour (90 gallons per hour)

2009-2011 Nissan GT-R

JE Pistons and Rings 99.75 Bore 79mm Stroke 9.5:1 Comp Subaru WRX / STI EJ257 2004-2021 Vehicle Model_IS 250 Includes V-Band and weld onPart #: 310937 JE piston designs are specifically engineered for extreme applications up to, and including, professional competition 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 STROKER