Perrin Performance Alternator Pulley for 15-25 Subaru WRX Lightweight Red

Perrin Performance Lightweight Alternator Pulley — Red (2014–2025 Subaru WRX, Crosstrek, FXT) Brand: Perrin Performance Upgrade your Subaru's throttle response and accessory drive efficiency with the Perrin Performance Lightweight Alternator Pulley. Designed for 2015–2025 WRX, 2015–2022 Crosstrek, and 2014–2018 FXT models, this precision-machined pulley reduces rotational mass for quicker engine spool and improved drivability. Fitment: 2015-2025 Subaru WRX, 2015-2022 Subaru Crosstrek, 2014-2018 Subaru Forester XT (FXT) Performance Benefit: Lower rotational inertia for faster turbo spool and crisper throttle response Construction: High-strength, lightweight billet aluminum for durability and long life Finish: Durable red anodized coating for corrosion resistance and show-quality appearance Easy Installation: Direct bolt-on replacement with factory belt and hardware (installation tools may be required) This Perrin alternator pulley is a popular bolt-on mod for enthusiasts seeking improved transient response without affecting engine management. Ideal for street, track, and staged builds, it pairs well with other underdrive or pulley upgrades. Why choose Perrin? Perrin is known for precision engineering, reliable fitment, and high-performance aftermarket parts tailored to Subaru platforms.