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JMS Single Remote Adjustment Knob for PedalMAX / FleetMAX (15-20 All)

Item 390276
Market Price $56.00 You Save 12% ($7.00)
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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 2005-2020 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 2020 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 2019 2020 Details


    CA Residents: WARNING: Cancer and Reproductive Harm -

    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, 19, 20
    • EcoBoost - 15, 16, 17, 18, 19, 20
    • GT - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
    • GT350 - 15, 16, 17, 18, 19, 20
    • GT350R - 15, 16, 17, 18, 19, 20
    • GT500 - 07, 08, 09, 10, 11, 12, 13, 14, 20
    • V6 - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17

      Customer Photos (6) Submit Your Photo

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        Questions & Answers (8)

        5 Top Rated Questions

        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.

        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.

        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.

        Helpful (0)
        Post Your Question
        3 More Questions
        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? 1 answer
        Hi I want to get rid of the delay in throttle response in my Mustang 5.0. Will this Product do the job? 1 answer
        Where are people mounting their knobs? 1 answer

          Customer Reviews (29) Write a Review

          Overall Rating 4.4

          out of 5 stars

          • 5/5

            September 20, 2019

            Pedalmax ajustment knob

            Its nice to be able to adjust PedalMax from 0 to 100 or u can turn it off completely. I am glad that I purchased it.


            Year: 2014 Submodel: GT

            Helpful (0)

          • 2/5

            August 11, 2019

            don't need it unless you want a Valet Mode

            I don't think you need this; if you put the JMS throttle boost on it works great and you will probably like 60 or 100 for your application. The advantage I see in the adjustment knob is if you have to let the Valet or someone else drive the car then turn it down to 0... otherwise you don't need it.


            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            July 29, 2018


            works as describe you can also turn off for others drivers.


            Year: 2005 Submodel: GT

            Helpful (4)

          • 5/5

            May 28, 2018

            Works as described.

            This is a nice to have item if you want the ability to adjust the responsiveness of the PedalMAX. Is it necessary? Not really, but it gives you the option.


            Year: 2018 Submodel: GT

            Helpful (5)

          • 2/5

            May 24, 2018

            Okay but not needed

            You will never turn it below 100. Absolutely buy the PedalMax but you don’t need the adjustment knob.


            Year: 2016 Submodel: GT

            Helpful (6)

          • 5/5

            May 01, 2018

            Stealth Knob

            A must have with the PedalMax. Mounted in console for stealthness! Is stealthness a word? Ha ha! G


            Year: 2013 Submodel: GT

            Helpful (5)

          • 3/5

            April 29, 2018

            ok, not as much response as I expected

            I was a little surprised for the price that this unit doesn't seem to make as big a difference as expected,based on the video saying people have to turn it down to 60? I'm happy with it but was hoping for more.,


            Year: 2015 Submodel: V6

            Helpful (7)

          • 4/5

            April 11, 2018

            Pedalmax setup on my 08’ GT500

            The System works well in regards to filling in that flat spot below Boost in Supercharged Motors. I own both an 08 GT and 08 GT500, the 4.6l 3V GT gets super low end throttle response with a Cool air and a Tune; whereas the GT500 with its 5.4l Motor- is a different animal and doesn’t respond to that so much.. With the 5.4l Intake runner(s) length (from TB to Combustion chamber) being longer, losses are inherent where you don’t have an adequate, snappy Vacuum designed to pull air through that longer and larger Intake path. This certainly is better with the Pedalmax kit. It isn’t adding HP, more like it tightens up and adds sensitivity and snap to the DBW Throttle response.


            Year: 2008 Submodel: GT500

            Helpful (7)

          • 5/5

            March 05, 2018

            Jms single remote knob

            At first i didnt want the cable but after a month or so i ordered the cable and wow im glad i did. If you have a heavy foot like mines you will redline your mustang very easy without the knob. Now i get to adjust the sensitivity of the throttle. Also its good to have in case you have a valet park your car.


            Year: 2017 Submodel: GT

            Helpful (7)

          • 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 (7)

          • 5/5

            January 28, 2018

            WOW!!! Buy it ASAP!!!

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


            Year: 2017 Submodel: GT

            Helpful (6)

          • 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 (7)

          • 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 (6)

          • 5/5

            August 13, 2017

            WORTH BUYING

            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 (9)

          • 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 (6)

          • 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 (8)

          • 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 (8)

          • 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 (8)

          • 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 (8)

          • 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 (7)

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