This F-150 Supercharger Kit delivers 590 HP and 590 LB/FT of torque to the 2011-2014 Ford F-150 6.2L-2v V8 powertrain, an increase of 179 HP and 156 FT/LB over stock.The ROUSH 2011-2014 6.2L F-150 Phase 2 Calibrated Supercharger Kit is part of the TVS line of superchargers developed by ROUSH that have raised the bar for performance and reliability. This is the same line that has been used and proven for years in ROUSH-built vehicles. The ROUSH R2300 supercharger features Eaton's new TVS rotating assembly that delivers more power in a smaller package for uncompromising performance. The ROUSH R2300 TVS supercharger is a roots-type, positive displacement supercharger that features twin four-lobe rotors that are twisted 160-degrees. This technology greatly enhance thermal efficiency, deliver higher volumetric capacity, enable higher operating speeds, creates a smoother, more efficient flow of air into the engine and has improved noise and vibration characteristics.