Once you have installed a Metco Supercharger Pulley Kit, a boost level change is as simple as changing the outer drive ring.
Please note: These pulley rings are only intended for use with a Metco supercharger pulley hub. If you do not already have a Metco supercharger hub on your vehicle, then these pulley rings cannot be used.
+4 LBS of Boost
Front Pulley Cover
Call For Belt Sizes
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.