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2011-2014 Roush 5.0L Mustang Phase 3 Supercharger Upgrade Kit

PART #:421597
Sale price

Regular price $1,199.99
( / )
FREE SHIPPING
APPLICATION: Mustang 2011-2014
INSTALL DIFFICULTY: Advanced

DIFFICULTY: Advanced

TIME: 2 hours

TOOLS: Garage Tools

International Purchases & Shipping

Prices stated here are only for sales within the continental United States and ordered via the ROUSHperformance.com web site. Prices for other territories and countries may vary due to shipping fees, duties, and other factors.

Orders placed via ROUSHperformance.com can only be shipped to areas within the continental U.S. If you live outside the U.S., please orders must be placed through an authorized ROUSH dealer.

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Product Description

Product Highlights for the 2011-2014 5.0L Mustang Roush Phase 2 to Phase 3 Supercharger Upgrade Kit:

  • Roush Fuel Pump Voltage Regulator for Precise Fuel Flow Control
  • Easy Plug-n-Play Wiring Harness, No Modifications Needed
  • Bolt-On 80mm Supercharger Pulley Included
  • Requires ROUSH Diagnostic Tool (RDT) Software Download
  • Generates a Thrilling 675 Horsepower and 585lb-ft of Torque
  • Compatible with 2011-2014 Ford Mustang 5.0L-4v Engine (Excluding BOSS 302)
  • Comes with a 3-Year/36,000 Mile Limited Parts Warranty (Roush Supplied Parts Only)
  • Designed for Manual Transmission Vehicles
  • Please Note: Not CARB Approved for California or EO Number-Requiring States


Elevate the performance of your 2011-2014 5.0L Mustang Phase 2 Roushcharger with the Roush Performance Phase 2 to Phase 3 Supercharger Upgrade Kit. This upgrade takes your existing 625 hp/525 lb-ft Roush supercharger to an exhilarating 675 hp and 585 lb-ft of torque, delivering a substantial boost in power for a reasonable investment.

The Phase 2-to-Phase 3 Upgrade Kit not only enhances performance but also provides added safeguards to accommodate the increased horsepower. To effectively manage the heightened fuel requirements, the kit includes the Roush Fuel Pump Voltage Regulator and a convenient Plug-n-Play wiring harness. This harness simplifies installation and removal, without the need for cutting or splicing factory wiring and harnesses.

Installing this bolt-on kit is a breeze, and it includes all the necessary components:
- 80mm Supercharger Pulley
- Roush Fuel Pump Voltage Regulator with Plug-n-Play wiring harness
- Access to Roush Diagnostic Tool (RDT) software via the Roush Flash Voucher Card

This kit now employs the Roush Flash Voucher card, allowing calibration using Roush Diagnostic Tool (RDT) software and a pass-thru device. If you lack access to an approved pass-thru device, you can send your PCM to Roush for flashing at an additional $100.00 fee.

Should you have any questions, please reach out to Customer Care at 800-59-ROUSH.

The 2011-2014 5.0L Mustang Roush Phase 2 to Phase 3 Supercharger Upgrade Kit is backed by a Roush Parts limited warranty (Roush Supplied Parts Only) covering 3 years or 36,000 miles from the original installation date.


>> View the ROUSH Supercharger Application Guide

Note: For Manual Transmission Only

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