PERRIN 15-18 Subaru WRX / 13-20 BRZ / 14-18 FXT / 13-16 Crosstrek Lightened Crank Pulley - Black

Made from a single piece of billet aluminum, this Perrin lightened crank pulley is designed to reduce the rotational mass on your engine. Less weight spinning means the engine can rev up and down more freely. This change can make the engine feel more responsive, especially when you're accelerating or decelerating.

The pulley is anodized black for a clean look and to help protect the aluminum. It's a direct replacement for your factory crank pulley, so installation is straightforward. While it's a lighter part, it's still well-built to handle the demands of daily driving and spirited use. You'll notice a difference in how quickly the engine reacts to throttle input.