- Save up to 50% on Gibson Exhausts!!
Click HERE to shop now!
Show Breadcrumbs

2011-2014 Ford Mustang GT 5.0 V8 Roush Supercharger (Phase 1 575 HP)

Part #:
Usually ships the same business day
CA Prop 65 Warning Warning: Cancer and Reproductive Harm For more information, go to www.P65Warnings.ca.gov
Free Shipping!
  • Description
  • SMOG Info
2011-2014 Ford Mustang Roush Performance Supercharger (Phase 1 575 HP Calibrated) 50 State Legal

Developed in conjunction with Ford Racing, this phase 1 Roush Performance Supercharger kit will turn your mustang into a monster. After installation, your Mustang will produce 575 horsepower and 505lb-ft of torque (155 hp gain and 115 lb-ft gain over stock). 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 and the added twist, when combined with newly-redesigned air inlet and outlet ports, 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.

Unlike turbocharging, the Roush R2300 TVS supercharger provides instant throttle response and can generate increased power through the engine’s entire power band.

Your Phase 1 SuperCharger Kit is a complete kit and will come with:
Roush/Ford Racing 2.3L TVS Supercharger
85mm supercharger pulley
Fuel charging assembly with Roush-designed upper and lower aluminum intake manifolds
Twin 60mm throttle body and matching throttle body spacer
Low restriction air induction system
Roush-designed injectors
High-efficiency intercooler system featuring large full-face low-temp radiator, oversized coolant degas bottle, high-capacity air-to-water intercooler, and formed hoses with abrasion-resistant sleeves.
All required fasteners, wiring, brackets, hoses, and clamps.

*This part now utilizes the Roush Flash Voucher card to be calibrated using Roush Diagnostic Tool (RDT) software and pass-thru device. If you do not have access to an approved pass-thru device, you can send your PCM back to Roush to be flashed for an additional $100.00 fee.

The part number for this item is Roush 421388 and it fits 2011-2014 Ford Mustang GT (5.0 V8 Models). This kit does NOT fit BOSS302 Models.
This Roush Supercharger kit is 50 State Legal and has been granted CARB Exemption number D-418-23/