| These BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics.
Made from aircraft quality machined steel or aluminum alloy these BBK under drive front accessory pulley kits are one of the easiest ways to free up an average 8-15 horsepower in under 30 minutes.
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. | 
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