Quick view Roush ROUSH 2011-2014 Ford Mustang 5.0L V8 625HP Phase 2 Calibrated Supercharger Kit - 421390 Compare $7,499.99 The Ford Mustang Phase 2 Supercharger Kit by ROUSH is calibrated to deliver 625 HP and 525 FT/LB of torque to the 2011-2014 Ford Mustang 5.0L 4v V8 powertrain, an increase of 205-213 HP and 135 FT/LB over stock.The ROUSH R2300 TVS supercharger is a... Add to Cart Add to Cart