2005-2010 Mustang GT Underdrive Pulleys
Underdrive pulleys are one of the better bolt-on modifications for your 2005 to 2009 Mustang GT and can get you some easy power gains in a small package that won't require other modifications or tuning. Underdrive pulleys can get your Pony up to 10 extra horsepower by replacing your inefficient accessory drive pulleys and allowing your Mustang's 3V 4.6L V8 to make more power. These pulleys work by slowing down the rotational speeds of your Mustang's belt-driven accessories, an action that reduces drag on your motor and allows it to put more power through to the crankshaft. The result is a nice boost in horsepower and some hassle-free performance gains. Once you're done with under drive pulleys, make sure to take a look at our Mustang cold air intakes, or 3V Mustang performance packages.