CTS-V ZL1 Pulley Upgrade. Once that is done the pulley simply slides on and tightens down with the stainless bolts. This makes for a system that is very easy to switch pulleys. Remove 5 bolts with standard allen wrench tool and you can put on a different size pulley.
This product, the "2.5" Supercharger Pulley, is ideal for upgrading the horsepower and torque of Chevy Camaro ZL1/CTS-V 6.2L LSA vehicles equipped with a genuine 2.50" LSA pulley, such as the blue bolt style.
