Please note that we recommend that you keep a one-way pulley installed on all Hellcat and Demon Superchargers. The one-way pulley serves as a dampner to avoid having timing issues within the heavy extruded rotors that are used in the IHI superchargers on these high performing vehicles. We recommend choosing an over-drive crank pulley over … Continue reading IHI Hellcat Supercharger with Aftermarket Smaller Pulley