Gain 12HP. You may not know it, but your accessories are robbing your Mustang of nearly 12 horsepower. Get that horsepower back with a set of SFI approved underdrive pulleys from BBK. BBK's underdrive pulleys reduce the drain your accessories place on your engine, freeing up more horsepower and improving throttle response, without affecting your Pony's charging or cooling characteristics.
Premium Quality. The BBK SFI-approved underdrive pulley set for your 2005-2010 Mustang GT is CNC machined from aluminum and steel components to ensure it will perform to the highest standards. With a brilliantly polished finish, this piece also looks great underhood.
Easy Installation. The BBK SFI-approved underdrive pulley kit comes with complete instructions for an easy install and requires no other modifications.
SFI Certified. By choosing an SFI Certified product, you're ensuring the product you choose has been made to the highest standards for quality and safety.