JE Pistons and Rings 99.5 Bore 8.5:1 Comp Subaru WRX / STI EJ257 Block W/ EJ20 Head 2004-2021 Wheel Center Caps SuperPro products provide precision machined

SuperPro products provide precision machined steel shells to allow the installer to quickly and easily replace worn components

42 in (43 x 36 mm) Weight 3

ACT Difference - 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Big End Width 0

The new DW300 pump flows 26% more at its peak and 20% more on average

JE Pistons and Rings 99.5 Bore 8.5:1 Comp Subaru WRX / STI EJ257 Block W/ EJ20 Head 2004-2021 Wheel Center Caps SuperPro products provide precision machinedPart #: 291059 JE Pistons and Rings SUBARU EJ257 BLOCK WITH EJ20 HEAD "FSR" New high strength FSR forging design! JE Pistons new FSR forgings are both strong and lightweight! The new FSR design has undergone extensive on track testing to ensure flawless performance under the most demanding conditions for your Subaru WRX. Features: 2618 T6 high tensile forged aluminum Specifically engineered for high horsepower Subaru engines Dome and dishes feature