Perrin [22-26 WRX] FA/FB Alternator Pulley Blue | PSP-ENG-121BL Car Stereo Systems The integrated urethane base flange

The integrated urethane base flange clamps straight to your intake tubing

Whether you’re lowering your 370Z for an aggressive stance or dialing in precise suspension settings for performance driving

Lexus GS400 1998

and more precise gear engagement under load—ideal for high-performance street or track builds

Perrin [22-26 WRX] FA/FB Alternator Pulley Blue | PSP-ENG-121BL Car Stereo Systems The integrated urethane base flangePREVENT FUTURE FAILURESubaru models with OEM clutch style alternator pulleys may fail over time. This failure can lead to knocking noises, battery charging issues, belt wear, and cause belts to become extra jumpy. The PERRIN Alternator Pulley removes this future failure point. DECREASE ROTATIONAL MASSPERRIN Alternator Pulleys weigh just 0. 20 lbs., which is lighter than the OEM alternator pulley. Throttle response, horsepower, and torque are all