Need to get rid of bothersome belt slack on your belt driven Supercharger? This CNC machined billet aluminum tensioner is made for all your 1986-1993 Ford Mustang Vortech Superchargers. Will fit V1-A, V1-B, V1-S, V1-T V2-S, SQ, V5-G V-7 YSI Attaches to your Vortech Supercharger easily and makes tightening your Vortech Supercharger Belt a cinch. Giving you more horsepower.