Go Fast Bits 2 Piece Under-Drive Pulley Kit w/ Belts Subaru WRX / STI / Legacy GT / Forester XT 2002-2021

One great way to boost your engine's response is by installing a lightweight pulley set. Compared to OEM pulleys, these lightweight ones have less rotational mass. This reduction in mass leads to improved engine response, giving you a slight increase in both power and torque. Part #: 2001. This is the Go Fast Bits 2-Piece Underdrive Pulley Kit that includes alternator and crank pulleys. Crafted from aircraft-grade aluminum, they come with an anodized black finish. This finish not only looks great in your engine bay but also provides extra protection against rust and corrosion. The kit also comes with a set of serpentine belts, making it ready for easy installation. Fitment: 2002 - 2014 WRX, 2004 - 2019 STI, 2005 - 2009 Legacy GT, 2004 - 2013 Forester XT.

Using this Go Fast Bits pulley kit is straightforward. First, make sure your engine is turned off and cooled down. Then, carefully remove the old pulleys and belts. Install the new pulleys from the kit in the correct positions and attach the included serpentine belts. Ensure all parts are tightly secured. When it comes to maintenance, check the belts regularly for any signs of wear and tear, like cracks or fraying. If you notice any issues, replace the belts right away. Also, keep an eye on the pulleys for any signs of corrosion, even though the anodized black finish offers protection. If you see any corrosion starting, clean the pulleys gently. As a safety note, always use the right tools for installation and maintenance to avoid any accidents.