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

Item 397379
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Market Price $355.00 You Save 13% ($46.00)
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$309.00 (each)

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      Review & Installation Video

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • 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


      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 -


      Customer Reviews (15)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 15 customers

      • February 07, 2020

        5 2018 EcoBoost - RickEsRide

        Feel the boast.

        Definitely noticed the boast with no turbo lag or drop off of acceleration. Worked well with 2018 Eco-boast 1 speed transmission:

        Helpful (1)
      • December 31, 2019

        1 2015 EcoBoost - Trey1202199

        Dead engine

        After day one, on my first pull at the highest setting, check engine light came on. Code for underboost. I guess i kind of expected that, so I turned the knob down to 75 after one week in the vehicle, and maybe 9 or 10 WOT incidents, engine develops a knock. Really loud, double rapping noise from the lower end. At the dealer now, and they're saying it needs an engine. I have no doubt in my mind this product is the cause as before product was installed, never had an issue with the ecoboost. Absolutely terrible to think I lost a $5000 engine to a $309 knob. No confidence. I'm mortified at what my bill will be if this voids my warranty.

        Helpful (0)
      • February 26, 2019

        5 2017 EcoBoost - TysonD


        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.

        Helpful (0)
      • April 30, 2018

        5 2017 EcoBoost - MDT

        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!

        Helpful (7)
      • April 12, 2018

        5 2015 EcoBoost - BlakeB

        Must Have!

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

        Helpful (5)
      • January 15, 2018

        5 2015 EcoBoost - BrandonU

        Good bang for your buck

        Very happy with the purchase. Excellent gains for the price

        Helpful (5)
      • January 03, 2018

        5 2015 EcoBoost - RobertL

        Awesome product

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

        Helpful (4)
      • October 23, 2017

        5 2015 EcoBoost - HaiD

        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.

        Helpful (7)
      • August 13, 2017

        5 2017 EcoBoost - TimothyF

        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

        Helpful (6)
      • July 29, 2017

        5 2015 EcoBoost - EcobeastMustang

        Love it

        Has improved my acceleration and the throttle response!

        Helpful (6)

      Questions & Answers (23 answers)

      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)

      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 (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)

      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

      Installation & What's in the Box

      Installation Info

      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

      Tech Specs

      Will It Fit My Mustang

      • EcoBoost - 15, 16, 17, 18, 19, 20

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