ROUSH 2015-2017 Ford Mustang 5.0L V8 600HP Phase 2 Calibrated Supercharger KitROUSH Performance's Phase 2 Supercharger system boosts performance to 727 horsepower for the Mustang Coyote V8, the ROUSH 2. 3L Phase 2 Calibrated Supercharger System is part of the TVS (Twin Vortices Series) line of superchargers developed by ROUSH, raising the bar for performance and reliability. Eaton's TVS technology rotating assembly delivers more power and better fuel economy in a smaller package, and is part of the same line that has been used