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JMS Single Remote Adjustment Knob for PedalMAX / FleetMAX (05-18 All)

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  • Item 390276
  • MPN# BX-6999-SINGLE

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    Features, Video & Details

    • Adjust Your Throttle Sensitivity
    • Easy Plug and Play Installation
    • Designed for use with JMS PedalMAX or FleetMAX
    • Fits All 2005-2018 Mustangs

    Review & Installation Video

    Review & Install Video

    Hey, everybody, I'm Justin with, and this is my quick overview of the JMS single remote adjustment knob that does work in conjunction along with your JMS ThrottleMAX or FleetMAX, available for your 2005 and newer Mustang. This short vid is gonna cover the basic purpose of going with the JMS single remote adjustment knob here for your JMS ThrottleMAX or FleetMAX, along with the basic operation and installation. And right up front, you're gonna expect a very simple one out of three wrenches here because this thing is completely plug and play, with any of your JMS modules. And we will have a little bit more detail on that later on. Plain and simple here, gang, the JMS single remote adjustment knob is gonna be for the Mustang owners who have already purchased or plan on purchasing a ThrottleMAX or FleetMAX, both from JMS, and just simply want a little bit more adjustment when it comes to functionality. Along with being able to make these changes on the fly, this is not possible without this remote knob here from JMS. Now chances are, if you're watching this video, you're probably already aware of what the JMS ThrottleMAX is all about, but if not, here's what you can expect in a nutshell. The JMS ThrottleMAX is something that modifies the drive by wire signal in your 2005 and newer Mustang, increasing your drivability and your throttle response, while eliminating that annoying throttle lag. So why would you want to look into the single remote adjustment knob here from JMS? Well right of out of the box, guys, that JMS ThrottleMAX is gonna come with essentially two different settings. Unchanged out of the box, you're getting 100% maximum throttle response or maximum effectiveness. Now, JMS also throws in a red four-pin connector along with the package here, that's gonna essentially desensitize your throttle sensitivity by about 40%. But this is it, this is all the adjustment you have. And on top of all this, you have to crawl underneath the dash, mess with these plugs. Not exactly something you can do on the fly. And that's where the knob from JMS comes into play. This gives you far more levels of adjustment than you had before without the knob present and it gives you the ability to do all of these changes on the fly. Again, something you could not do without this knob from JMS. And this is great depending on your situation. Maybe you want to tone down the ThrottleMAX when you're stuck in heavy traffic or maybe you really want to crank this sucker up when you're ready to do some spirited driving. Whatever the case, the knob from JMS is a great way to help you out. And if for whatever reason you ever wish to turn off the ThrottleMAX completely while driving, that is something that is possible here with the knob. Simply turn it all the way to zero and effectively the ThrottleMAX is not on anymore. And again, this is something that you couldn't do without having the knob installed in your ride, without physically crawling underneath the dash and unplugging the ThrottleMAX or FleetMAX in your ride. So we established that without the knob in place, the ThrottleMAX is essentially only giving you those two settings: the 100% sensitivity or desensitized by 40%. What kind of adjustment are you looking at here with the knob? Well, JMS sets you up with 25% increments here with the knob, starting at zero, 25, 50, 75, and 100. But you're not stuck with these increments, you can go anywhere in between 25 and 50, 50 and 75, you get the point. Basically, you have endless levels of adjustment here with the knob, depending on your driving style. As far as price, I will say at around 50 bucks. It's really not that bad of an add-on on top of your JMS ThrottleMAX if you've already purchased one. Especially if you're the type of Mustang owner out there who always likes to play with stuff or tweak your settings, this would be an awesome choice for you. On the other hand, if you're the set it and forget it type, save your 50 bucks and just go with what JMS gives you right out of the box. I will say though, at 50 bucks, on top of your ThrottleMAX which is about 280, you're still looking at a relatively affordable mod compared to some of the more custom tuning options out there. So if you're not quite ready for a custom tune just yet or you have your own reasons why you don't want to go with a custom tune, the ThrottleMAX along with the throttle knob here is a nice way to get some of the benefits of a custom tune, like that improved drivability but without going all in on a full blown custom tune. As far as the installation, well like I mentioned earlier, one out of three wrenches on the difficulty meter. Plug and play install here, guys. We call it 30 minutes on the site from start to finish, but honestly, most of your time in that 30 minutes will probably be spent deciding on where you want to put the knob itself. I've personally seen a lot of guys put them underneath the steering wheel, on the dashboard. You can also throw it into the center console for maybe a stealthier approach. Whatever the case, JMS is giving you five feet of cord so you have some options to work with. They also give you these two little holes that are probably gonna be used for some screws. I don't know about you guys but I don't want to drill anything into my dashboard. So, clean the area really well first using some alcohol prep pads, throw some 3M automotive tape on the back of this thing, save you from having to drill into your ride. But again, you have some options and ultimately, look forward to a very simple install. Wrapping up the adjustment knob here from JMS, if you've already pulled the trigger or thinking about pulling the trigger on a ThrottleMAX, pick up the adjustment knob, and here's why. The amount of adjustability is worth the price of admission alone, but factor in the ability to make all these tweaks on the fly, and that's where this product is really gonna shine. So that's my review of the JMS single remote adjustment knob which you can find right here at

    Adjustable Throttle Response. Straight out of the box the PedalMAX Throttle Enhancer is preset to provide maximum increase in throttle response. This is great for some drivers, but others may find the stock setting to be to aggressive for their needs. That's where the JMS Remote Throttle Control Knob comes into play. The Remote Throttle Control Knob will allow you to adjust the throttle response from zero to maximum or anywhere in between to match your specific driving style.

    Plug and Play Installation. Best of all, this Adjustment Knob is designed to plug directly into your JMS PedalMAX or FleetMAX. There is no wire cutting or splicing required, making it a true plug and play install.

    Application. This JMS Single Remote Adjustment Knob is designed for use on all 2005 to 2018 Mustangs that are equipped with a JMS PedalMAX or FleetMAX, including V6, EcoBoost, GT, Bullitt, BOSS, Shelby GT500 and GT350 models.

    Fitment: 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Details

    What's in the Box
    • (1) Selector Knob with 5 feet of Wire
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 08, 09
    • EcoBoost - 15, 16, 17, 18
    • GT - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • GT350 - 15, 16, 17, 18
    • GT350R - 15, 16, 17, 18
    • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
    • V6 - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17

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    8 Questions / 6 Answers

    Ask a Question

    Can you still use it if you already have a custom tune or is it one or the other?


    • This Adjustment Knob is designed to plug directly into your JMS PedalMAX or FleetMAX and can be used with a tuner!


    Helpful (1)

    Will this work with the factory throttle body and without a tuner


    • Hi, This Adjustment Knob is designed to plug directly into your JMS PedalMAX or FleetMAX, it can be used with a factory throttle body but you will need one of the JMS Drive By Wire Throttle Enhancement Devices.

      Chris J

    Helpful (1)

    If I have an automatic, will this product still improve throttle response?


    • The JMS Single Remote Adjustment Knob for PedalMAX / FleetMAX will work with an automatic or a manual Mustang.


    Helpful (0)

    What is the throttle setting at on stock ford racing whipple 550 hp tune on a 2008 197- 4.6 without a pedalmax approximately my car has a over sensitive pedal modulation for autocross it seems full on or off on hpde it seems great


    • unfortunately we do not have any info to show which setting on the JMS Single Remote Adjustment Knob for PedalMAX and FleetMAX would be most similar to the stock throttle setting.

      Rob D

    Helpful (0)

    Do I need to turn off the car every time I want to change the settings on the adjustment knob? or can I do it on the go whenever I feel like it?


    • The JMS Single Remote Adjustment Knob can be used to adjust on the fly, however we do recommend doing this only at a complete stop.

      Rob D

    Helpful (0)

    What setting will the JMS be set at if I don't use the knob. Will it still be at its highest performance level or do I need the knob?


    • Thank you for your question about the JMS Single Remote Adjustment Knob for all ThrottleMAX / FleetMAX (05-17 All). Without the knob the JMS is set at 100% full response unless the desensitizing plug is used, which only allows for one lowered setting. The Adjustment Knob allows for complete personalization, allowing you to change on the fly from being 100% to 0%, effectively turned off.


    Helpful (0)

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    Customer Reviews (20) Write a Review

    Overall Rating 4.6

    out of 5 stars

    • 3/5

      February 08, 2018


      I actually didn’t use this product it wasn’t necessary for my application but I’m sure it’s really good


      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      January 28, 2018

      WOW!!! Buy it ASAP!!!

      Just go buy it NOW you will not be disappointed!!!


      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      December 09, 2017

      Worth the money

      The adjustment knob provides complete control of the incredible responsiveness of the JMS throttle enhancement device. For me, about 25 is just right for everyday bumper to bumper driving. Can't wait to see how it reacts with a comp cam.


      Year: 2008 Submodel: Bullitt

      Helpful (0)

    • 5/5

      October 17, 2017

      running fast

      The jms pedal max is worth it to me I noticed the moment I installed it and took it to the streets there was a quick response and excelleration and I noticed this even with 3.73 differential gears and a tune.


      Year: 2014 Submodel: V6

      Helpful (0)

    • 5/5

      August 13, 2017


      when I first started looking at the pedal max I was skeptical of how well it worked. I think this addition to the rest of my bolt on products mad my pony come to was one of the best investments I made MARK


      Year: 2014 Submodel: Other

      Helpful (2)

    • 5/5

      August 10, 2017

      Must buy!!!

      I was undecided if I should buy this or an cold air intake but this is a must have. After installing you can automatically feel the difference in sport mode or just in regular drive. Using the paddle shifters is way more smother now thanks to this product.


      Year: 2016 Submodel: V6

      Helpful (0)

    • 5/5

      July 24, 2017

      Nice option

      Nice to have the option to return to normal/stock setup. Super easy to install and mounts under the dash for ease of access.


      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      July 10, 2017

      Great easy to reach boost

      Like magic it's faster, like magic it's stock again. Love it


      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      June 05, 2017

      Love it!

      The PedalMAX is great! The Adjustment Knob makes it even better. At 100 it responds the way a muscle car should. At 0 it responds like factory which is great for bumper to bumper traffic.


      Year: 2012 Submodel: V6

      Helpful (0)

    • 5/5

      May 31, 2017

      Useful but not necessary

      I haven't had to use this yet. It was simple to install. Not necessary but wanted in case someone that is not familiar with the JMS is driving my car, this way I can turn it off when I need to. Affordable, I am happy with the purchase.


      Year: 2016 Submodel: GT

      Helpful (0)

    • 5/5

      May 31, 2017

      Nice to have for sure

      If you are a daily driver who wants to be able to hit it hard at times, it really is a great option. Otherwise if you're just satisfied with 100 it's likely not worth it as you'd just leave it on all the time.


      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 4/5

      May 04, 2017

      JMS single remote adj. knob for pedalmax

      I sure can tell the difference lots more power quicker!!!(WOW)!!!!!!


      Year: 2015 Submodel: V6

      Helpful (2)

    • 4/5

      April 13, 2017

      Nice add on

      Diffently not needed, but if you want fine tuning and the ability to turn off then worth the money.


      Year: 2016 Submodel: V6

      Helpful (1)

    • 4/5

      April 11, 2017

      Throttle max remote

      This works good, you can turn throttle max off for other drivers or if you forget what it's like before.....turn it off, you will be surprised again at what you gain in response. Remote knob works as advertised.


      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      March 20, 2017

      Excellent upgrade

      This Adjustment knob is great. I like it because when my wife or daughter drives my car I can turn my Jms pedal max off completely. I let my daughter take my car to college for the week because I need to get her car inspected so being able to have the knob to turn off my pedal max was right on time!


      Year: 2015 Submodel: GT

      Helpful (1)

    • 5/5

      February 03, 2017

      Glad i bought it

      Started not to buy the controller because I'm going to keep it at100 all the time. One day my pony seemed sluggish, so I installed the controller and turned the pedal max off drove it hard on the freeway to check it out,then turned it back on for my return trip and once again had a smile on my face the pedal max work's.


      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      January 17, 2017


      Haven't installed it yet but looks simple. Great customer service from American Muscle. If I can tell an improvement I'll be ordering one for my F250!


      Year: 2015 Submodel: EcoBoost

      Helpful (2)

    • 4/5

      November 06, 2016

      It does its job

      It gets the job done. But it would be better if it clicked at each number and was illuminated or flatter


      Year: 2016 Submodel: Ecoboost

      Helpful (1)

    • 3/5

      August 01, 2016

      Umm maybe

      I keep it 100 with my driving style so not a necessity for me


      Year: 2007 Submodel: GT500

      Helpful (0)

    • 5/5

      July 26, 2016

      This is something you can feel

      I tried an aftermarket throttle body bedore I tried this product, and you can feel the differences with and without this remote. To be honest I never thought I would feel I difference that I can really notice at the first instance, but it does. This is a device that really does its job if you want to get that extra from your aftermarket throttle body.


      Year: 2006 Submodel: GT

      Helpful (1)

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