Perrin Performance Alternator Pulley for Subaru WRX/STI/Impreza Lightweight Blue

Perrin Performance Lightweight Alternator Pulley — Blue Brand: Perrin Performance — engineered for Subaru WRX, STI & Impreza owners who demand performance and reliability. Upgrade your charging system with the Perrin Lightweight Alternator Pulley designed for 2002–2005 WRX, 2004–2006 STI, and 1993–2011 Impreza models. Machined from high-quality aluminum and finished in anodized blue, this pulley reduces rotating mass to free horsepower and improve throttle response. Fitment: Subaru WRX (02–05), STI (04–06), Impreza (93–11) Material: Precision-machined aluminum for strength and low weight Finish: Durable anodized blue — corrosion resistant and visually striking Performance Benefit: Reduces parasitic drag on the engine to slightly increase acceleration and rev response Easy Installation: Direct bolt-on replacement using factory hardware; no modifications required This Perrin pulley is ideal for street, track, and tuned builds where every bit of efficiency matters. Backed by Perrin’s reputation for quality, it’s a simple, effective upgrade to enhance your Subaru’s driving dynamics and engine feel.