This Perrin Performance crank pulley is a great upgrade for your Subaru. It fits 2002 - 2014 Subaru WRX, 2004 - 2021 Subaru STI, 2005 - 2009 Subaru Legacy GT, 2005 - 2009 Subaru Outback XT, and 2004 - 2013 Subaru Forester XT. Made from CNC 6061T6 billet aluminum, it's anodized in your choice of black, blue, or red. It reduces rotating mass, giving you more horsepower, torque, and better throttle response. With an estimated installation time of just 30 minutes and no tuning required, it's easy to install. It comes with an installation guide and a 5 - year manufacturer warranty. Weighing only 1.2lbs, it's over 4lbs lighter than the stock pulley, equivalent to removing over 100+lbs of vehicle weight. Unlike aftermarket underdrive pulleys, it avoids charging and drivability issues by copying the OEM piece. It won't wear out engine bearings or the oil pump, and there's no extra vibration or noise. Installation is straightforward, no need to jack the vehicle or remove much except the belt cover, belts, and stock crank pulley.
Using this Perrin Performance crank pulley is simple. First, gather your tools and follow the installation guide that comes with the pulley. It only takes about 30 minutes to install, and you don't need to tune your vehicle. Just remove the belt cover, belts, and the stock crank pulley, then put the new Perrin pulley in place. When installing, make sure all parts are properly aligned to avoid any issues. As for maintenance, it's pretty low - maintenance. There's no need to do anything special. But if you notice any unusual noises or vibrations during use, check the pulley to make sure it's still in good condition. And remember, it comes with a 5 - year manufacturer warranty, so if there are any problems, you can contact the manufacturer.
