BBK 2001-2004 MUSTANG GT/00-01 COBRA 3 PC UNDER DRIVE PULLEY KIT (BILLET ALUMINUM) 1559

BBK 2001-2004 MUSTANG GT/00-01 COBRA 3 PC UNDER DRIVE PULLEY KIT (BILLET ALUMINUM) 1559 is a BBK Performance Parts upgrade built for enthusiasts who want proven fitment, dependable construction, and real performance value without guessing on parts compatibility.

This engine under drive pulley kit is designed for serious street, muscle car, and performance applications where airflow, exhaust flow, throttle response, and durability matter. Use the fitment notes below before ordering.

Key Features

• 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.
• Brand: BBK Performance Parts
• Part Number: 1559

Vehicle Fitment

2001-2004 Ford MUSTANG

Emissions & Compliance

This product may affect emissions-related systems. Check local regulations before installation.

Installation Notes

Professional installation is recommended. Confirm clearance, engine configuration, and related hardware before installation.