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Exclusive VMP kit for over-driving the supercharger on your 2020 Shelby GT500 5.2 L Predator engine. Adds 4psi of boost. 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. Includes: ATI balancer VMP 20% Overdrive ring VMP Low-profile tensioner VMP Heavy-Duty belt tensioner Installation hardware
