BBK Performance is a powerhouse in aftermarket performance, delivering high-quality, American-made upgrades that unleash the full potential of your muscle car, truck, or SUV. With a legacy spanning over 30 years, BBK is the go-to brand for throttle bodies, cold air intakes, headers, and exhaust systems designed to boost horsepower, torque, and throttle response. Engineered for enthusiasts who demand real performance gains, BBK products offer a perfect balance of innovation, precision, and reliability. Whether on the street or the track, BBK Performance helps you dominate the road with power you can feel.
Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.
Installation Instructions
Warranty
Installation Instructions
This Part Fits:
Fitment Years: 2001, 2002, 2003, 2004.
Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.
Installation Instructions
Warranty
Installation Instructions
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2004 | Ford | Mustang | Base |
| 2001-2004 | Ford | Mustang | GT |
| 2001 | Ford | Mustang | GT Bullitt |
| 2003-2004 | Ford | Mustang | Mach 1 |
| 2001,2003-2004 | Ford | Mustang | SVT Cobra |
| 2003 | Ford | Mustang | SVT Cobra 10th Anniversary |
Fitment Years: 2001, 2002, 2003, 2004.
- CARB:
- This product is not CARB Legal and not for sale in California
- Category:
- Engine Components>Pulleys - Crank, Underdrive
- Core:
- N
- Core Price:
- 0
- LTL:
- N
- MPN:
- 1559
- Proposition 65:
- Y
