With the extra rotating mass of the supercharger and weight of all the accessories it will jerk the belt and sometimes hurt your OEM tensioner. It causes it to flex and in the end you usually end up with broken belts that are hard to find and expensive. A great fix for all blown Roush, Saleen and other bolt on supercharger applications. Kit is available with a factory pulley or an optional billet one.
Note: 555-3358 is designed for use with Whipple supercharger kits with a 3.625" - 3.25 blower pulley. These kits require a 90mm idler.
Beefcake Racing is an Authorized Dealer for Steeda, call 1-855-827-7223, 9am-9pm EST
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov