Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter Daily

JMS BoostMAX Performance Booster - Race Version (15-20 EcoBoost)

Item 397379
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $355.00 You Save 13% ($46.00)
Our Price

$309.00 (each)

FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock Ships same business day.
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.

    Features, Video & Details

    • Performance Booster
    • Reduce Turbo Lag, Enhance Acceleration
    • Add up to 5 PSI of Boost
    • Green Status LED
    • Remote Boost Control Knob
    • Plug and Play Installation
    • 1-Year Warranty
    • Fits 2015-2020 EcoBoost Mustang

    Review & Installation Video

    Review & Install Video

    Sizzling Performance. Putting some extra punch into your already fiery 2015-2020 Mustang EcoBoost is as simple as attaching the JMS BoostMAX Race Version Performance Booster, which improves vehicle acceleration and low or mid-range torque and horsepower. Amplifying the boost by up to 5 PSI, the JMS BoostMAX generates up to +44 RWHP (rear wheel horsepower). This performance booster also cuts down on the turbo lag often experienced in EcoBoost Mustangs and adds +2 MPG fuel efficiency in many cases. It is designed to be stackable with other JMS boost devices, plus SCT flash tuners, in order to generate even bigger horsepower and torque gains.

    Convenient Design. The designers of the Race Version JMS BoostMAX made it with convenience in mind, including a plug-and-play install and a remote boost control knob. The control knob enables instant adjustment of performance and power with the booster installed. An 87 octane red chip is also included to optionally improve 87 octane function. The BoostMAX features a green status LED and can be installed in your Mustang without affecting the vehicle's warranty.

    Simple Installation. The JMS BoostMAX is a plug and play component that comes complete with a wiring harness, install kit and instructions. Installation takes just minutes and involves unplugging the TIP, MAP and Pedal connector and plugging in the BoostMAX in its place.

    Application. The JMS BoostMAX Race Version Performance Booster is designed to boost the engines of 2015-2020 Mustangs equipped with the 2.3L EcoBoost.

    Fitment: 2015 2016 2017 2018 2019 2020 Details

    MPN# BX600023VR

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) BoostMAX Boost Enhancer
    • (1) Plug and Play Wiring Harness
    • (1) Remote Boost Control Knob
    • (1) 87 Octane Red Chip
    • Hardware
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos

        Questions & Answers (23)

        5 Top Rated Questions

        "This performance booster also cuts down on the turbo lag often experienced in EcoBoost" A) Does anyone have any figures they could provide, I am installing mine in a couple weeks and want to be able to compare. B) How does this effect 0-60 and 1/4 mile times?

        • The JMS BoostMAX Performance Booster is adjustable to provide up to an additional 5PSI of boost which can add up to 44 additional HP. 0-06 and 1/4 mile times will improve, however due to a number of variables such as tire size and type, suspension, road surface, temperature and humidity, as well as elevation, hard numbers can not be attributed to this.

        Helpful (2)

        So this chip WILL work in my 2018 ecoboost?

        • The JMS BoostMAX Performance Booster (Race Version) is compatible with 2018 EcoBoost models, in addition to 2015-2017 EcoBoost models.

        Helpful (1)

        Would it be okay to run the JMS BoostMAX Performance Booster with an Unleashed tune at the same time?

        • Yes, it is okay to run a tune with the BoostMax.

        Helpful (1)

        What is the big difference compared to the standard JMS BoostMAX?

        • JMS BoostMAX - Race Version is more aggressive and has a better throttle response than the boost max. Also includes a option for 87 octane fuel.

        Helpful (1)

        If this is such a great product why have so many experienced eco boom using this

        10 More Questions
        What does the 87 octane chip do? 1 answer
        Will the JMS BoostMAX Performance Booster - Race Version (15-19 EcoBoost), Item 397379 that I purchased 1. 5 years ago for my EcoBoost Mustang work on my 2019 Ranger EcoBoost? 0 answer
        This is stackable with pedal max but is there any redundancy? 1 answer
        How well does this work with the throttlemax? I cannot find feedback about the two working together 1 answer
        When adjusting boost on the controller, do you have to turn the car off for the adjustments to take effect or are the boost adjustments automatic when using the different selections on the controller? For instance going zero boost to 5 psi while driving. 1 answer
        Does it work with the preset mods like Normal, Sport, Race? My car is Automatic.. 1 answer
        I'm just curious, has anyone tried this with the Ford Pro Cal tune? Will it work? 1 answer
        will this void any warranty's? 1 answer
        If i have just a stock 18' ecoboost would this work normally, or would i have to buy other mods for it to run smoothly? 1 answer
        I purchased a bama x4 to tuner and bama notified me it isn't safe to run their custom tunes with the boostmax plug and go. Is there any ideal tunes to run with the chip that won't be detrimental to my engine performance? 1 answer

          Customer Reviews (13) Write a Review

          Overall Rating 5

          out of 5 stars

          • Performance Gain 4.692307 4.7
          • Seat Of Your Pants Feel 4.769231 4.8
          • Ease Of Use 4.538462 4.5
          • Bang For Your Buck 4.846154 4.8
          • Preferred Tune: Performance

          • 5/5

            February 26, 2019


            The boostmax made a very noticeable difference in my 2017 ecoboosts performance! Its pulls way harder than stock. You MUST listen to your engine though when you turn the controller knob up past `!! I heard some detonation every now and then but corrected it somewhat by using one step colder plugs and running some octane boost on top of the 94 octane fuel i get from petro canada. I still turn my music down when doing WOT pulls so i can hear my engine clearly. Other than that, the boostmax is a great mod for anyone looking to gain some serious power while not voiding your warranty if of course, you remove it from your car before bringing it in for any work at the dealership.


            Year: 2017 Submodel: EcoBoost

            Helpful (0)

          • 5/5

            April 30, 2018

            Doesn't flash your ECU.

            Significant noticeable power gains with out making any undo able changes! I'm using the red 87 octane chip running 90 octane ethanol free gas and my gas mileage went up when I'm not in the turbo using the cruise control. I'm planning to get a Ranger later this year and this will be my first mod. Excellent Product!


            Year: 2017 Submodel: EcoBoost

            Helpful (5)

          • 5/5

            April 12, 2018

            Must Have!

            You can definitely tell the difference in power when you push the petal! Very pleased with the product fairly easy to install.


            Year: 2015 Submodel: EcoBoost

            Helpful (5)

          • 5/5

            January 15, 2018

            Good bang for your buck

            Very happy with the purchase. Excellent gains for the price


            Year: 2015 Submodel: EcoBoost

            Helpful (5)

          • 5/5

            January 03, 2018

            Awesome product

            I notice a big difference right away still good mpg and more power


            Year: 2015 Submodel: EcoBoost

            Helpful (4)

          • 5/5

            October 23, 2017

            Smooth Fast

            I spent 2 hrs fpr installation because I got some troubles with the Engine light and Wrench Light show up after first trying. But after all, those light went off. After the installation,I gave my car a ride test and i can feel a lot difference,more smoother and felt faster. P/s: for installation,when you guys plug all the cable into place and try to start the car,if the engine light and wrench light show up,try to unplug all the cable and plug it back after 30s. If it still show up,repeat that step. It will go off.


            Year: 2015 Submodel: EcoBoost

            Helpful (7)

          • 5/5

            August 13, 2017

            Love it

            It does work I hit 22/24 psi maybe fuel is better but I floor it all the time and drive hard with other little work the ecoboost can beat the 5.0 to 70mph after then the 5.0 takes over some times I go into overboost and have no turbo boost at all and I have to pull over turn the car off then back on Maybe 4 times now over in 1 year


            Year: 2017 Submodel: EcoBoost

            Helpful (6)

          • 5/5

            July 29, 2017

            Love it

            Has improved my acceleration and the throttle response!


            Year: 2015 Submodel: EcoBoost

            Helpful (6)

          • 5/5

            April 17, 2017

            Smooth and Fast

            I have this stacked with a Bama X4/SF4 Power Flash Tuner, performance tune and the acceleration is the most noticeable (which I love). I haven't driven long enough to notice a change in fuel economy. The turbo lag also seem non-existent at this point which makes it's smoother. For easier installation, get something legit to raise the front of the vehicle (I parked my front tires up on a curb with the E brake on).


            Year: 2015 Submodel: EcoBoost

            Helpful (7)

          • 5/5

            March 29, 2017

            Josie Wails

            Added the JMS BoostMax to my 2016 Ecoboost Mustang named Josie and what a difference it makes. The installation was easy and the horsepower increase is noticeable. There has been an added benefit in that when I resist the urge to keep my foot planted to the floor, my gas mileage has increased 2-3 mpg. Just unreal results for one hours work.


            Year: 2016 Submodel: EcoBoost

            Helpful (10)

          • 5/5

            February 18, 2017

            JMS brings your mustang to life!!

            The JMS boostmax was a little difficult to install. I recomend having a lift to install this or a jack. This product really made my car come to life though. I got peak gains of 43 rwhp and 57 lb of torque with 93 octane. This product will leave you speechless!!


            Year: 2016 Submodel: EcoBoost

            Helpful (5)

          • 5/5

            February 17, 2017

            JMS Boost Max...Incredible!!

            The installation of the Boost Max was a little difficult, but after! My Ecoboost just get a V8...I recommend this product.


            Year: 2015 Submodel: EcoBoost

            Helpful (6)

          • 5/5

            January 17, 2017


            Just got one and plugged it in and couldn't believe it was the same car!!!


            Year: 2015 Submodel: EcoBoost

            Helpful (8)

          Related Mustang Categories