Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $15,000!! Enter Now

Roush R2300 to Phase 2 Supercharger Upgrade Kit (11-14 GT)

Item 389801
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $799.99 You Save 4% ($32.00)
Our Price

$767.99 (kit)

FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Review & Installation Video

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Upgrade to 625 Horsepower and 525 lb-ft of Torque
      • Includes Cold Air Intake, 85mm Pulley and 6-Rib Serpentine FEAD Belt
      • Roush PCM Flash Voucher Card Included
      • 3 Year / 36,000 Mile Limited Warranty on Roush Parts Only
      • Fits 2011-2014 GT Mustangs with a 525hp, 540hp or 575hp Roush TVS Supercharger Kit


      More Horsepower and Torque! Increase the power and performance of your current 525 HP, 540 HP or 575 HP Roush Performance 5.0L Mustang Supercharger to an impressive 625 horsepower and 525 lb-ft of torque with a Phase 2 Supercharger Upgrade Kit.

      Kit Includes. The Roush R2300 to Phase 2 Supercharger Upgrade Kit includes a new 85mm S/C Pulley, 6-Rib Serpentine FEAD Belt, Cold Air Intake with 110mm MAF Housing, ROUSH PCM Flash Voucher Card and installation instructions.

      Roush Performance quality - guaranteed. Roush is known for a rich tradition of excellent racing performance engineering at the highest level of OEM quality and design. This Supercharger upgrade kit features a 3 Year/36,000 Mile Parts limited warranty (ROUSH Supplied Parts Only).

      Upgraded ROUSH PCM calibration. ROUSH® PCM calibration is a success of engineering that maximizes the power of the system. ROUSHcharger owners will receive a ROUSH® PCM Flash Voucher Card, which is used to obtain the specific calibration needed for your Mustang and requires ROUSH Diagnostic Tool (RDT) software and a J2534 Pass-Through device to upgrade your PCM (software and pass-through device not included).

      Application. This ROUSH Phase 2 Supercharger Upgrade Kit works with both manual and automatic 2011-2014 GT Mustangs equipped with the Coyote 5.0L DOHC 4 valve V8 engine and a ROUSH TVS Supercharger that produces 525, 540 or 575 horsepower.

      Fitment: 2011 2012 2013 2014 Details

      MPN# 421389

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (3)

      Write a Review

      Ratings Summary

      5 out of 5 overall rating from 3 customers

      Installation Time: Full Day

      Installation Cost: $100-$250

      • April 26, 2018

        5 2012 GT - smoke2014 Installation Time: Shop Install Installation Cost: $100-$250

        Roush Phase two upgrade

        very well made and looks great under the hood.must have pass thru device to flash tune it,Roush performance recommended the ford tool so that's what we got,no complaints.took them less than 2 hours and only charged me $170.00

        Helpful (13)
      • July 25, 2017

        5 2013 GT - JefferyC Installation Time: Afternoon

        Roush phase two upgrade kit

        The belt will be the hardest to change. The pulley will come right off after you remove the bolt screws. Two hour job.

        Helpful (16)
      • January 02, 2016

        5 - Beast5oh Installation Time: Afternoon


        this is a bang for your buck product i totally recommend this product

        Helpful (17)

      Questions & Answers (3 answers)

      3 Top Rated Questions

      Is this CA CARB certified?

      • This is not CARB certified. Any products we offer that are CARB certified, the CARB EO number will be clearly posted within the first few bullet points of the features of any given product page. If you don't see a CARB EO number, than it's not certified.

      Helpful (0)

      Can it fits to my ROUSH Automatic transmission? how about if I upgrade to 675 HP can it fits too

      • This would be for use on the Automatic or Manual transmission 11-14 GT with the Roush R2300 575 HP Supercharger Kit installed.

      Helpful (0)

      would this fit a v6 mustang 2014

      • The Roush R2300 to Phase 2 Supercharger Upgrade Kit is designed specifically to the 2011-2014 GT Mustangs with a 525hp, 540hp or 575hp Roush TVS Supercharger Kit already installed. The Cold Air Intake System with 110mm MAF, 6-Rib Serpentine FEAD Belt, and 85mm Supercharger Pulley only fit on the ROUSH TVS for the GT's, and would not fit your V6 Mustang.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • Cold Air Intake System with 110mm MAF
      • 6-Rib Serpentine FEAD Belt
      • 85mm Supercharger Pulley
      • ROUSH PCM Flash Voucher Card
      • Installation Instructions

      Tech Specs

      Will It Fit My Mustang

      • GT - 11, 12, 13, 14

      This Roush R2300 to Phase 2 Supercharger Upgrade Kit is specifically designed for 2011-2014 GT Mustangs with 525hp, 540hp or 575hp Roush TVS Supercharger Kit installed.

          Related Mustang Categories