ROUSH has developed this industry - leading calibrated supercharger system, boosting performance to 650 horsepower for the all - new 2015 - 2017 Ford F - 150 5.0L V8. The ROUSH 2.3L Phase 2 Calibrated Supercharger System is part of the TVS line of superchargers developed by ROUSH, raising the bar for performance and reliability.The ROUSH R2300 TVS supercharger is a roots - type positive displacement supercharger that features twin four - lobe rotors that are twisted 160 - degrees. By comparison, the original Eaton supercharger rotating assembly featured three lobes twisted 60 - degrees. The fourth lobe combined with the added twist provides a long list of benefits including greatly enhanced thermal efficiency, higher volumetric capacity, higher operating speeds, a smoother, more efficient flow of air into the engine, and improved noise and vibration characteristics.