Wiseco Piston Set 99.75mm Bore WRX 2006-2014 / STI 2004-2021 Subaru Turbo Models | K598M9975AP vendor_Sparco Part #: PSR-216SMWAAFR-WO-SF

Part #: PSR-216SMWAAFR-WO-SF

3" piping was selected to reduce back-pressure while increasing horsepower and torque

These go in the actual shifter u-joint (Some folks call it the trunnion)

Part #: COP-501

For use with the OEM radiator only

Wiseco Piston Set 99.75mm Bore WRX 2006-2014 / STI 2004-2021 Subaru Turbo Models | K598M9975AP vendor_Sparco Part #: PSR-216SMWAAFR-WO-SFDedicated 2618 alloy forgings, offset wrist pins, Nitrided Napier Steel rings, skirt coatings, complex dish and dome designs, special skirt profiles, and other features insure longevity and power with boosted and nitrous engines. Specs: 8. 9: 1 Compression Ratio 99. 75mm Bore Includes: Wrist Pins, Piston, and rings.