Roush 2015-2017 Ford Mustang Phase 1-to-Phase 2 727HP Supercharger Upgrade Kit

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  • Manufacturer Part Number: 421994
  • $1,299.99
    Unit price per 


  • WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. PROP65 INFO
The ROUSH Phase 2 supercharger upgrade kit builds on the outstanding performance of our 2015-2017 Phase 1 supercharger system by adding proven core components and careful calibration, for an additional 57 horsepower and 65 lb-ft of torque. The result is an outstanding 727 hp / 610 lb-ft of torque while retaining the daily confidence you expect from the engineering of ROUSH Performance. ROUSH engineers spend hundreds of hours in the laboratory, on the dyno, and out in the field to ensure the components and calibration deliver consistent performance in all conditions.

This Part Fits:

Year Make Model Submodel
2015-2017 Ford Mustang EcoBoost
2015-2017 Ford Mustang EcoBoost Premium
2015-2017 Ford Mustang GT
2015 Ford Mustang GT 50 Years Limited Edition
2015-2017 Ford Mustang GT Premium
2015-2017 Ford Mustang Shelby GT350
2015-2017 Ford Mustang Shelby GT350R
2015-2017 Ford Mustang V6