BBK Performance 1559 Underdrive Pulley Kit for Ford Mustang 4.6L/GT - 3 Piece Lightweight CNC Machined Aluminum Pulley Set - Improves Horsepower & Acceleration for Street Racing & Performance Upgrades

BBK Aluminum Under drive Pulley Kit for Ford Mustang GT/Cobra 4.6L - 3 Piece is 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 of 8-15 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.