The Cobb Tuning Lightweight Main Pulley is a great upgrade for your Subaru. It fits 2002 - 2014 WRX, 2004 - 2021 STI, 2005 - 2009 Legacy GT, 2005 - 2009 Outback XT, and 2004 - 2013 Forester XT models. Made from billet 6061 - T6 and anodized in black, it can withstand tough under - engine conditions. This pulley has a stock diameter, which helps avoid electrical problems and makes it easy to install. It reduces rotational mass by 4 lbs compared to the stock unit, improving acceleration. Weighing only 1.2 lbs, it comes with an installation guide, so even beginners can install it easily.
Using your Cobb Crank Pulley is straightforward. First, make sure your car's engine is cool before starting the installation. You can follow the included installation guide, which will walk you through each step. If you're not sure, it's a good idea to have a professional mechanic help you. When the pulley is installed, you'll notice improved acceleration right away. As for maintenance, check the pulley regularly for any signs of wear or damage. Keep it clean from dirt and debris. If you drive in harsh conditions, it's a good idea to check it more often. Also, make sure the drive belt is in good condition and properly tensioned to ensure the pulley works at its best.
