PERRIN Lightweight Alternator Pulley Blue - Fits 06-14 Subaru WRX / 07-21 STI / 06-13 Forester subaru-outback-xt-2005 Ideal replacement for the failure-prone

Ideal replacement for the failure-prone stock radiator

Carbon fiber manufacturing process: engine covers are vacuum-bagged and cured in the autoclave at high temperatures

and the highest quality manufacturing processes

If you are planning on making 500whp or less

this shroud improves airflow efficiency

PERRIN Lightweight Alternator Pulley Blue - Fits 06-14 Subaru WRX / 07-21 STI / 06-13 Forester subaru-outback-xt-2005 Ideal replacement for the failure-proneThe PERRIN Lightweight Alternator Pulley in blue is designed for 2006 2014 Subaru WRX, 2007 2021 STI, and 2006 2013 Forester models. This precision engineered pulley reduces rotational mass, improving engine responsiveness and efficiency. By decreasing parasitic drag on the engine, it helps enhance throttle response and can contribute to smoother power delivery. Built for durability and performance, its an ideal upgrade for enthusiasts aiming to