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How To Install 18-20 Mustang Roush Phase 2 Supercharger Upgrade Kit

Last Updated 5/7/2020 by Taylor Ward

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FOLLOW: how to , installation , roush , 2015 mustang , supercharger

How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang

Designed to fit 2018-20 Mustangs with either the 6-speed manual MT82 or 10-speed automatic 10R80 transmissions. Also, this must run on 91 octane or higher.

Tools Needed:
  • Basic Hand Tools
  • Laptop
  • Internet Connection
  • SAE J2534 Pass-Thru Device (might be easier to reach out to a Roush certified dealer to flash the PCM instead)
Application:
  • Fits 2018-2020 Mustang GT

Installation

  1. Support the car via A-lift or as high as possible on jack stands.
  2. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  3. Underneath the car, remove the large push pins at the rear of the lower closeout panel (2 in the center, 4 on the driver and passenger sides).
  4. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  5. Loosen and remove all of the 7mm screws (make sure to hold the panel with your free hand when removing the last screw).
  6. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  7. You can now remove the closeout panel.
  8. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  9. Remove push pins to remove radiator lower splash shield.
  10. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang

    How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  11. Loosen and remove the (2) 10mm bolts that secure the heat exchanger to the lower brackets.
  12. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  13. Loosen and remove the (4) 10mm bolts securing the spanner bar to the K-member (2 per side).
  14. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  15. Hold the bar with your free hand when removing the last bolt and set aside.
  16. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  17. Fully remove the (2) passenger side heat exchanger 10mm bolts.
  18. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  19. For now, only loosen the driver side hardware.
  20. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  21. Unclip the passenger side connection, but don’t fully remove yet and position a piece of cardboard behind the heat exchanger which will help deflect and direct the coolant towards the drain pan.
  22. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  23. Place the drain pan underneath this area and fully remove the passenger side hose.
  24. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  25. Leave the drain pan where it is and remove the driver side hose from the heat exchanger. Because of the way the heat exchanger is engineered, the coolant will flow from the passenger side fitting.
  26. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  27. Position the upper hose out of the way and fully remove the 10mm bolts.
  28. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  29. Tilt the heat exchanger toward the passenger side to let more coolant run out.
  30. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  31. Now you can fully remove the heat exchanger.
  32. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  33. Place the new heat exchanger on a workbench and use the provided foam weatherstripping and apply to the perimeter (this is the side that will make contact with the condenser).
  34. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  35. Install the new heat exchanger into the car and align with the upper brackets.
  36. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  37. Loosely install all (4) of the previously removed bolts and fully tighten.
  38. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  39. On the old heat exchanger, remove the rubber grommets and metal sleeves and transfer to the new heat exchanger.
  40. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  41. If needed, remove the plastic clip from the old heat exchanger and install back on the quick connect fitting.
  42. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  43. Install both hoses on the heat exchanger and verify they are fully seated by moving the fitting back and forth.
  44. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  45. Before reinstalling the spanner bar, loosen and remove the (2) 13mm bolts that secure the lower brackets.
  46. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  47. Position the provided lower brackets behind the rubber grommets and tighten the previously removed bolts.
  48. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  49. Position the spanner bar in place and loosely tighten the previously remove bolts.
  50. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  51. Install the 13mm bolts and fully tighten.
  52. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  53. Go ahead and tighten the heat exchanger to lower bracket bolts followed by the spanner bar bolts.
  54. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  55. Remove the cap from the reservoir and fill with coolant.
  56. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  57. Since the new heat exchange is larger, a little more coolant than normal will need to be added. If it helps, power on the car without starting the engine to allow the pump to circulate the coolant. Per Roush, the coolant should be roughly 1” below the top of the cap.
  58. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  59. Once you screw the cap back on the reservoir, go ahead and start the car to reach operating temperature. Check for any leaks and turn off the car.



  60. At this time, you can reinstall any of the components that were removed for installation. If needed you can drive the car to the dealership so that they can flash the PCM with the updated Roush calibration.
  61. How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang - How To Install Roush Phase 2 Supercharger Kit | 2018-20 Mustang


  62. Once the PCM is flashed, you are good to go!

Roush Phase 1 & 2 Kits


About the Video

2018-2020 Mustang Roush Supercharger Phase 2 Kit - Review/Dyno

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Published on 2020-04-08
Buy Phase 1 to Phase 2 Upgrade Kit: https://latemodelres.to/422185
Buy Phase 1 Kit: https://latemodelres.to/422090
Buy Phase 2 Kit: https://latemodelres.to/422184

Roush Phase 1 to Phase 2 Supercharger Upgrade Kit
Increase the power output of your Phase 1 Roush supercharged Mustang GT with this 2018-2020 Mustang GT Roush Phase 1 to Phase 2 supercharger upgrade kit! Roush's upgrade kit brings your power output to 750 horsepower/670 lb-ft of torque, which is a 50 horsepower increase and 60 ft-lb torque increase over the Phase 1 kit. Roush achieves this by providing you a full face, high-capacity, low-temperature radiator to increase cooling capability for the Eaton TVS supercharger. A new tune recalibration pairs with this radiator to optimize your Roush supercharger system and maximize power output. All of this is optimized for 91+ octane fuel and backed by a 3-year/36,000-mile Roush limited powertrain warranty!

Product Notes
This Roush Phase 1 to Phase 2 supercharger upgrade kit fits both automatic and manual applications.
50-State emissions-legal on 2018-2020 Mustangs (CARB E.O. #D-418-34)

Application
Fits 2018-2020 Mustang GT


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