PERRIN 15-25 Subaru WRX / 15-22 Crosstrek / 14-18 FXT Lightweight Alternator Pulley - Blue

Perrin Performance is known for making well-built engine components for Subaru vehicles. This lightweight alternator pulley is designed to reduce the load on your engine by spinning up faster. By reducing the rotational mass of the alternator pulley, your engine can put more power towards the wheels instead of spinning the alternator.

This pulley is made from aluminum and anodized blue for a clean look under the hood. It's a direct replacement for your stock alternator pulley and fits right into place. While it's a small change, reducing parasitic drag can make a noticeable difference in throttle response, especially on modified vehicles.