This Mustang belt tensioner is the same belt tensioner that's included in the 2010 ROUSHcharger kits, making it a replacement part for these packages:2010 Mustang R2300 ROUSHcharger & Upgrade; Kit (part #420026)2010 Mustang R2300 ROUSHcharger Upgrade Kit...

Having belt slip issues on your supercharged GT500? VMP's adjustable belt tensioner provides better belt wrap around your blower pulley and eliminates excessive belt slip with smaller pulleys on higher boost applications.