Upgrading your supercharger pulley is one of the easiest ways to generate more horsepower on the M113k engine. By decreasing the size of the pulley, the pulley will spin the supercharger faster at a higher RPM. The higher the RPM the higher the boost. The higher the boost, the higher horsepower. We have upgraded pulleys available from some of the best and proven brands on the market. Please contact our team and have with the pulley size you're looking for so we can assist you in locating the correct pulley for your specific application.
*Our tests show 45-50 rear wheel hp and torque gains, while maintaining a safe level of boost and supercharger rpm.
*Professional installation required
*ECU tune required