Once the Metco supercharger pulley is installed on your Hellcat, a boost level change is as simple as changing the outer drive ring on the supercharger pulley. This pulley upgrade is for customer who are purchasing or have already purchased the full Metco pulley assembly. Each pulley ring ships with the appropriate front pulley cover.
*Please note that these pulley rings are intended for use with the Metco supercharger pulley hub. If you do not already have our supercharger pulley on your car, these pulley rings cannot be used.
Important: With the exception of the stock-diameter pulley ring, all pulley ring changes will require the appropriate PCM revisions, as well as the appropriate length supercharger belt. HHP can provide you with everything you need for your Hellcat.
