ROUSH 2015-2017 Ford F-150 5.0L V8 650HP Phase 2 Calibrated Supercharger KitROUSH has developed this industry leading calibrated supercharger system, boosting performance to 650 horsepower for the Ford F 150 5. 0L 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