Perrin Performance Lightweight Alternator Pulley for 06-14 Subaru WRX/STI/For...

Perrin Performance Lightweight Alternator Pulley — 06-14 Subaru WRX / 07-21 STI / 06-13 Forester Brand: Perrin Performance Upgrade your Subaru's throttle response and reduce parasitic drag with the Perrin Performance Lightweight Alternator Pulley. Precision-machined and anodized in red, this pulley replaces the heavy factory unit to improve engine efficiency without sacrificing reliability. Fitment: 2006–2014 WRX, 2007–2021 STI, 2006–2013 Forester (verify vehicle compatibility before purchase) Benefits: Faster revs, improved throttle response, reduced accessory load, and potential slight fuel economy gains Construction: CNC-machined aluminum with durable anodized finish for corrosion resistance Easy Installation: Direct bolt-on replacement using existing hardware; no modifications required Appearance: High-contrast red anodize for an OEM+ under-hood look This lightweight alternator pulley is ideal for enthusiasts seeking a simple, effective performance upgrade. Backed by Perrin Performance quality, it delivers reliable operation and a noticeable improvement in engine responsiveness. Keywords: Perrin lightweight alternator pulley, Subaru WRX pulley, STI alternator pulley, Forester performance pulley, CNC aluminum pulley