This Perrin crank pulley is a game - changer for your Subaru engine. It's specifically designed for 2002 - 2014 WRX, 2004 - 2021 STI, 2005 - 2009 Legacy GT, 2005 - 2009 Outback XT, and 2004 - 2013 Forester XT models without AC. By reducing the engine's rotational mass, it promotes faster revs, better throttle response, and increased performance. The anodized blue finish with a white PERRIN logo looks great and adds a touch of style. Weighing just 1.0 lbs, it's 4 lbs lighter than the stock OEM crank pulley, which is equivalent to removing over 100 lbs of vehicle weight. Machined from high - quality 6061 T6 billet aluminum, it has precision - machined grooves that tightly sync with all OEM and aftermarket belts, ensuring a perfect fit and reliable operation.



Using this Perrin crank pulley is easy. First, make sure your Subaru model is one of the compatible ones and doesn't have an AC system. Then, carefully remove the old crank pulley from your engine and install this new lightweight one. When installing, ensure that the grooves align perfectly with the belts. As for maintenance, regularly check the pulley for any signs of wear or damage. Keep it clean to prevent debris from building up. If you notice any issues like unusual noises or vibrations, stop using the vehicle and have the pulley inspected. With proper use and maintenance, this crank pulley will keep your engine running smoothly and boost your car's performance for a long time.