The mid-level 20% OD kit adds 3-4 pounds of boost and includes the parts necessary to complete the installation.? Includes the required VMP heavy duty belt tensioner with 58MM idler pulley to clear the larger diameter balancer ring.??

NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.