Perrin (WRX/STi) EJ Engines (w/o AC) Black Crank Pulley 2002-2014 WRX / 2004-2021 STI

This Perrin crank pulley has been optimized to reduce engine rotational mass, promoting faster revs and enhanced response while maximizing engine performance. It has been engineered specifically for those running engines without AC belt drive, allowing them to reach maximum horsepower and torque. Anodized black finish with a white PERRIN logo, this pulley weighs just 1.0 lb, representing a 4 lb reduction in comparison to the standard OEM pulley - equivalent to removing over 100 lbs of vehicle weight. It is machined from 6061 T6 billet aluminum and features precision grooves compatible with all OEM and aftermarket belts.