Made from aircraft quality aluminum alloy these BBK under drive front accessory pulley kits are one of the easiest ways to free up an average 6-10 horsepower in under 30 minutes.

These BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics.

Each BBK under drive pulley kit is vehicle specific. They are designed and tested at the BBK headquarters in Southern California for maximum performance.

These under drive pulley kits are available in a hand polished aluminum finish or gloss black powder coated steel. Each kit comes with complete installation instructions and allow the use of existing serpentine belts.

Part Number: 1564, 1608

96-01 Mustang GT SFI Underdrive Pulley Kits

BBK now offers SFI approved performance pulley kits with a SFI approved Steel crank damper. Built from high quality CNC machined aluminum & Steel each BBK kit is designed as a direct bolt on to replace the stock pulleys that rob your engine of horsepower.

Each SFI pulley kit is designed specifically for each vehicle. This pulley kit for the 1996-2001 Mustang GT* is designed as a 3 piece kit. As with our traditional pulley systems horsepower gains are approximately 9-12 rear wheel horsepower which is a result of the reduced drag which also helps with overall fuel economy. As with all BBK parts these SFI approved pulley kits offer BBK's distinctive quality that guarantees many years of top performance. The Crank Pulley is a steel SFI one piece replacement - additional pulleys are CNC Aluminum.

ALL BBK performance under drive pulley kits use existing factory serpentine belts.

Part Number: 1592 - 1998-2002 LS-1 Camaro, Firebird SFI Underdrive Pulley Kit

Part Number: 1593 - 97-04 LS-1 Corvette SFI Underdrive Pulley Kit

BBK now offers SFI approved performance pulley kits with a SFI approved Steel crank damper. Built from high quality CNC machined aluminum & Steel each BBK kit is designed as a direct bolt on to replace the stock pulleys that rob your engine of horsepower.

Each SFI pulley kit is designed specifically for each vehicle. These pulley kits are designed as a 1 or 2 piece kit. As with our traditional pulley systems horsepower gains are approximately 9-12 rear wheel horsepower which is a result of the reduced drag which also helps with overall fuel economy. As with all BBK parts these SFI approved pulley kits offer BBK's distinctive quality that guarantees many years of top performance.

ALL BBK performance under drive pulley kits use existing factory serpentine belts.