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Roush Performance Power Pac - Level 1 (15-17 GT)

Item 394063
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    Features, Video & Details

    • Roush Performance Pac - Level 1
    • Increases of over 25 RWHP and 30 ft/lb RWTQ
    • Improves Throttle Response
    • Roush Cold Air Intake Kit Included
    • Reusable High Flow Dry Air Filter
    • 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
    • Fits 2015-2017 Manual and Automatic GT Mustangs

    Review & Installation Video

    Review & Install Video

    More Horsepower and Torque. The 2015-2017 GT Mustang arrives at your dealers showroom setup for the driving needs of the masses, not for you the individual driver. It is for this reason that Roush developed their Level 1 Performance Pac. By combining their Cold Air Intake and Flash Pack custom tune you will see an increase of over 25 Horsepower and 30 ft/lbs of Torque at 4300 RPM.

    Roush Calibration. Roush engineers developed their dedicated premium fuel calibrations under laboratory conditions to increase the horsepower and torque of your GT across the entire RPM range with their Cold Air Intake installed. The improved throttle mapping of the included Roush tune will also give your Coyote 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.

    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.

    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 1 Performance Pac is specifically designed for use on manual and automatic 2015-2017 GT Mustangs equipped with the 5.0L Coyote V8 engine.

    Technical Note. This product is not legal for use in California or any other state adopting California emission standards. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

    Fitment: 2015 2016 2017 Details

    MPN# 421996

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Cold Air Intake
    • (1) Flash Pack Voucher
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos

        Questions & Answers (5)

        5 Top Rated Questions

        Hello, any issues or concerns for the vehicle stacking this with the JMS Pedalmax? I already have the Pedalmax, but looking to do this Power Pac. Thanks.

        • You would be able to use this Roush Power Pac along with the JMS PedalMAX Drive By Wire Throttle Enhancement Device without any issues.

        Helpful (2)

        Have the same question as scotty1 . Already have the roush exhaust . Is the level 1 tuner the same as the level 2 tuner . Only need the intake and a tune.

        • So Roush does not offer a physical tuner, Roush happens to request you send your Mustang's PCM directly to them, in which they reprogram the computer directly and ship it back to you. Therefor, the voucher relative to level 1 and level 2 will be different as they contain different information for Roush to tune for. However with that being said, it would be worth calling Roush directly, relative to their power pack we sell, to ask them what you options are for tuning down the line as you continue to modify your Mustang.

        Helpful (0)

        I already have the Roush axle back exhaust. If I buy the ROUSH POWER PAC - LEVEL 1 will the tune that comes with the level 1 be the same as buying the ROUSH POWER PAC - LEVEL 2

        • The Roush Power Pac - Level 2 will have a tune written specifically for the items in that kit. Seeing as you have the same items you can get the Level 1, although you will have to ask for the level 2 tune as you have all the necessary components.

        Helpful (0)

        I have a 2016 GT Premium California Special. It has stock hood vents on each side of the hood towards the front. Would this Roush CAI seal against the hood right under the open vent? Has anyone installed this Roush CAI on a new GT with the hood vents Thank You

        • Hello! The Roush Cold Air Intake will sit right under the Heat Extractor. However, it does not make a perfect seal up against the hood.

        Helpful (0)

        Looking at adding a 85mm throttle body at the same time as a CAI. Will this kit and the accompanying tune: A) Fit? and B) Take the increased throttle body size into account new tune?

        • This Roush intake will not have a problem fitting the 85mm throttle body! It will be also recommended to get an updated tune when adding this throttle body on.

        Helpful (0)
        Post Your Question

          Customer Reviews (3) Write a Review

          Overall Rating 4

          out of 5 stars

          • Performance Gain 3.666667 3.7
          • Seat Of Your Pants Feel 3.666667 3.7
          • Ease Of Use 3.666667 3.7
          • Bang For Your Buck 3.333333 3.3
          • Preferred Tune: Performance

          • 4/5

            June 20, 2017

            2017 GT

            Fairly easy to install fresh air intake. but the sound tube was very difficult, due to the nut that hold it on is right behind the drivers side head.


            Year: 2017 Submodel: GT

            Helpful (12)

          • 4/5

            May 14, 2017

            Makes a VERY noticible difference

            Now I need more grip... LOL. If you are considering this option I say go for it. Talk to your installer first to make sure they have the device needed. Most Ford dealers have one.


            Year: 2016 Submodel: GT

            Helpful (11)

          • 4/5

            September 08, 2016


            Decent quality, good price, good gains. Always good to give your Stang a little push.


            Year: 2016 Submodel: GT

            Helpful (10)

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