All new tensioner and all-new kit for ‘20-'22 Mustang Shelby GT500 and ’24-'25+ F-150 Raptor R with the 5.2 L Predator and 5.2 L Carnivore supercharged engines.

Now includes VMP 60 mm idler for double-row bearing for the tensioner AND a 60 mm idler to replace the lipped idler. The tensioner can often hit the larger stock idler and cause the belt to break, this kit fixes that issue.

• 20% more tension than stock
• 60 lb spring
• Reduces belt slip
• Precision machined from Billet Aluminum
• Doesn't crack and fail like the stock tensioner in high boost applications
• Includes 60 mm x 1.5" wide billet-aluminum idler for use with 15% and 20% over drive balancer rings
• Included Billet idler with HD bearing is half the weight of the stock idler
• The higher tension and lighter moment of inertia allows the tensioner to control the belt better during burnouts and shifts reducing slip on the supercharger pulley and improves belt life