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Roush Performance Power Pac - Level 2 (18-19 GT w/o Active Exhaust)

AmericanMuscle no longer carries the Roush Performance Power Pac - Level 2 (18-19 GT w/o Active Exhaust).

Features & Details

  • Roush Performance Pac - Level 2
  • Increases of 24 RWHP and 18 lb/ft TQ
  • Improved Air Flow and Performance
  • Roush Cold Air Intake Kit, Axle-Back and RDT Flash Software Voucher Included
  • Calibration Optimized for 91 Octane Fuel
  • Flashed via a J2534 Interface Tool - A Dealer Service Charge May Apply
  • Optional 3 Year/36,000 Mile Limited Powertrain Warranty Available
  • CARB EO Number: D-418-32
  • Fits 2018-2019 GT Mustangs without Active Exhaust
Get It All. Give your 2018-2019 Coyote powered Mustang an increase in horsepower and torque throughout the entire RPM range with a Level 2 Performance Pac from the folks at Roush. The team at Roush has combined their Cold Air Intake, Axle-Back Exhaust and Flash Pack custom tune together into one convenient kit to significantly improve the power and performance of your Pony. After installing this Level 2 Performance Pac on your Coyote powered Mustang you will see an increase of over 24 horsepower and 18 ft/lbs of torque at the rear wheels.

Axle-Back Exhaust. Give your Mustang an aggressive raspy sound with a Roush Axle-Back Exhaust. This innovative Roush Axle-Back Exhaust features two unique open chambered mufflers that improve exhaust flow. Constructed from mandrel bent 2.5 inch diameter 304 stainless steel piping for strength and enduring corrosion resistance, this Axle-Back features two dual wall 4 inch quad tips that are finished in a new chrome flashing process that is resistant to exhaust heat discoloration.

Cut & Clamp Installation. Installation of the included Roush Axle-Back Exhaust requires cutting and removing the factory muffler assemblies and clamping the new muffler assemblies in their place. Clamps, hardware and installation instructions are provided.

Cold Air Intake. Roush's Cold Air Intake was engineered using CAD data to eliminate restrictions and to optimize air flow. Injection molded from premium automotive-grade materials, this Cold Air Intake will last a lifetime. The included high-flow dry air filter provides excellent filtration of harmful power robbing particulates. The filter is composed of two layers of wire mesh for durability and is proven to retain its shape even under high airflow. Washable, this dry air filter does not require oiling, saving you time and money.

Straight Forward Installation. The Roush Performance Cold Air Intake Kit is designed to install easily with just basic hand tools. No extra modifications or special tools are required for proper installation. All necessary parts and instructions are included. Please note, if you would like to retain the factory engine cover on your vehicle, trimming to the cover is required.

Roush Calibration. Roush engineers developed their dedicated premium fuel calibrations under laboratory conditions to increase the horsepower and torque of your V6 across the entire RPM range with their Cold Air Intake and Exhaust installed. The improved throttle mapping of the included Roush tune will also give your V6 powered Mustang a much more aggressive feel. Roush's calibrations have been optimized for 91 octane fuel, they are compatible with lower octane ratings with reduced power and performance output.

J2534 Interface Tool Required. Just about any dealer can perform this calibration upgrade in under an hour without even breaking a sweat. The Roush Flash Pack Calibration is flashed on to your Mustang's ECU using Roush's RDT software and an industry standard J2534 interface tool. Please note that a dealer service charge may apply.

Optional Warranty. An optional 3 Year/36,000 Mile Limited Powertrain Warranty is available through Roush. The optional warranty must be purchased within 30 days of the service installation date. Click here to see more details.

Application. This Roush Level 2 Performance Pac is specifically designed for use on all 2018-2019 GT Mustangs that is not equipped with the Active Exhaust.

Fitment: 2018 2019 Details

MPN# 422114

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Driver Side Muffler
  • (1) Passenger Side Muffler
  • (2) Exhaust Tips
  • (2) Tip to Muffler Clamps
  • (2) TORCA Duraseals
  • (1) Lower Air Box Tray
  • (1) Upper Air Box Cover Assembly
  • (1) MAF Tube
  • (1) MAF Insert
  • (1) Dirty Air Duct
  • (1) Tube Assembly
  • (1) Filter with Clamp
  • (1) Installation Insert
  • (2) MAF Tube to Air Box Bolts
  • (1) Boom Tube Delete Grommet
  • (6) Self Tapping Screws
  • (2) Roush Stickers
  • (1) Flash Pack Voucher
Installation Info
Will it fit my Mustang?

    Customer Photos

      Questions & Answers (2)

      2 Top Rated Questions

      Does the product void a factory warranty?

      • While the dealer may notice the Roush Performance Power Pac has been installed, you are protected by the Magnuson-Moss Warranty Act. Magnuson - Moss Warranty Act (15 U.S.C. 2302) states that legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can definitively prove that the aftermarket part caused or contributed to the failure in the vehicle.

      Helpful (0)

      The Roush CAI is said to not be CARB legal, but there is a CARB EO number listed in the description of this Power Pac, Does that mean the kit as a whole is CARB legal?

      • This is CARB legal under the CARB EO #D-418-32

      Helpful (0)
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        Customer Reviews (1) Write a Review

        Overall Rating 5

        out of 5 stars

        Installation Time:Shop Install

        • Performance Gain 3 3
        • Fit 4 4

        • 5/5

          Installation Time: Shop Install

          November 27, 2018

          Power you can feel

          This is the first mod I’ve done to my gt that I could feel striaght out the box. The package gives an amazing sound from both inside and outside the car.


          Year: 2015 Submodel: EcoBoost

          Helpful (6)