2011-2014 5.0L Mustang ROUSH Phase 1 to Phase 3 Supercharger Upgrade Kit 421596

This Kit is intended for use when upgrading from the Roush 575 Phase 1 Supercharger Package only.  If you are upgrading from the 625 Phase 2 Supercharger Package you will need to order the 421597 Phase 2 to Phase 3 Upgrade Kit.  Click Here!!

Ready for more power? Increase the horsepower and torque of your 2011-2014 ROUSHcharged Mustang with the Phase 3 Supercharger Upgrade kit.

The ROUSH Performance Phase 1 to Phase 3 Upgrade kit improves the power gains of your 5.0L Mustang Phase 1 ROUSH supercharger to 675 HP and 585 ft-lbs of concrete-smashing torque. That;s an increase of 100 HP and 80 lb-ft of torque, more power to dominate the streets!


This upgrade kit offers better performance and added protection to meet the high demands of this much horsepower. To meet the increased fuel demands the ROUSH Fuel Pump Voltage Regulator and Plug-n-Play wiring harness offers are added to help regulate fuel pressure. The ROUSH Plug-n-Play wiring harness allows for easy installation or removal if the kit ever needs to be removed. No cutting or splicing of factory wiring and harnesses required.

The primary components of the Phase 1-to-Phase 3 Upgrade Kit include:
80mm Supercharger Pulley
ROUSH Fuel Pump Voltage Regulator with ROUSH Plug-n-Play wiring harness
Cold air induction system
2085mm 6-rib serpentine belt
Unique ROUSH PCM Calibration





Highlights:
ROUSH Fuel Pump Voltage Regulator to moderate fuel flow and ensure a proper fuel-to-air charge ratio
ROUSH Plug-n-Play wiring harness where no modifications are needed to the vehicles fuel pump wiring system
ROUSH Cold Air Induction System with 110mm MAF, washable/re-usable open element air filter and air dam
Bolt on 80mm Supercharger Pulley
Unique ROUSH PCM Calibration
Produces 675 horsepower and 585lb-ft of torque (100 HP gain and 80 lb-ft gain over Phase 1)
2011-2014 Ford Mustang 5.0L-4v engine Ð Manual transmission only (excludes BOSS 302)

NOT approved for sale or installation in the state of California
Part # 421596

Convenient 0% interest Financing Available!

We know how hard it can be to come up with a large amount of money to get that Mustang part you have been wanting. To help solve this problem we have found a great way to get your part now and pay later. Brenspeed can now offer financing options for your performance part and even installation!

The process is simple. Just call us and we can go over your options and how to get 3 months, 6 months, or even 12 months same as cash with 0% interest. Now you can get that intake and tuner or even supercharger now and pay for it later. Even if you do not choose to pay the financing off in say 3, 6, or 12 months GE Money will turn your 3, 6, or 12 month same as cash into a monthly payment with a set interest rate.

The entire approval process only takes 5 minutes once we receive your application. Once you are approved we provide you with your product or service immediately. Call us to receive an application and get all the details on this easy to use financing option.

Call us at 574.594.9559 and simply ask for a financing application. We can answer any further questions you may have at that time.