
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
- Underdrive Pulley Kit
- 2001-04 Mustang GT 4.6L
- SFI-Approved
Includes: - Crank (Steel)
- Water Pump (Aluminum)
- Alternator (Aluminum)
- 9-12 rear wheel horsepower gainNote: The Crank Pulley is a steel SFI one-piece replacement - additional pulleys are CNC Aluminum.
BBK Underdrive Pulley Kits Free Up To 8-15 HP!
When it comes to adding power at an affordable price, very few items can compare to these BBK Performance Parts Underdrive Pulley Kits. Proper electrical charging is ensured by careful engineering of the pulley diameter while still increasing power. BBK Ford Underdrive Pulley Kits are CNC machined for a perfect fit and available in your choice of polished aluminum or black powdercoated steel.
Show More
Features:
- Allows the Use of the Existing Serpentine Belt
- Bolt-On Replacement
- Frees Up 8-15 HP
- Cuts Down Accessories Power Usage










