Steeda Supercharger Pulley for Shelby GT500

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Increase boost and add tire schredding horsepower! Steeda's GT500 supercharger pulley directly replaces the factory supercharger pulley and gives approx 3psi of extra boost. Manufactured out of billet steel, not aluminum like others on the market and nickel plated for durability and great looks. In house testing has shown increases of over 125 HP and 100ftlbs of Torque to the Rear Tires!!! (Test on GT500 with Steeda CAI, Pulley and Tune)