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JMS PedalMAX Drive By Wire Throttle Enhancement Device (05-10 All)

Item 390274
Market Price $332.00 You Save 13% ($43.00)
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      Review & Installation Video

      What's going on, guys? I'm Alex from with my quick review of the JMS PedalMAX Drive By Wire Throttle Enhancement Device, fitting your 2005 through 2010 Mustang. So, in this video, I'm gonna give a quick breakdown of what you can expect in terms of performance, what you should expect to be spending. And then last but not least, we're gonna hit the installation, which right off the bat, I'm gonna be giving a very easy 1 out of 3 wrenches on the difficulty meter, and you should have this on your Mustang in about 30 minutes or less.So, if you're the 2005 through 2010 Mustang owner and you're looking to make a great improvement in your Mustang's throttle response, but you're not too into the idea of picking up a custom handheld tune, this is definitely gonna be the product for you. So, the team over at JMS saw a little bit of weak spot in terms of the throttle sensitivity, as well as how well it responds in the '05 through '10 Mustangs, and they thought that this could definitely be improved upon.So, giving you a quick refresh, some of the older Mustangs are gonna be a cable-driven style in comparison to the newer drive by wire system, but still, it's a little bit on the lagging side. So, the guys over at JMS found that the '05 through '10 Mustang, despite having a drive by wire system, still lagged a little bit and was kind of reminiscent of what you might find on either a Fox Body or a New Edge Mustang, which is cable driven. So, the guys over at JMS saw this void and they brought the PedalMAX to market with the Mustang owner in mind that's looking to greatly improve their throttle response, make it that much more crisp, and a little bit more lively.Now, this is not something that's gonna be giving your Mustang horsepower and torque. I definitely wanna get that out there, first and foremost. But, this is gonna be great for the Mustang owner that wants to keep their warranty in check, if you do have an extended warranty on your '05 through '10.So, with the electronic throttle control technology, or drive by wire setup, what you're gonna notice is that there is a huge lag between the point where you put your foot on the gas and when the blade of your throttle body opens up. So, a drive by wire system is gonna monitor the position of the gas pedal in terms of how open or closed your throttle's gonna need to be. So with the JMS PedalMAX, this is going to give you that much more crisp and clear throttle response.So, right out of the box, this is gonna be set at the most aggressive setting, but I do wanna mention that JMS does have a separate controller here which will give you the ability to tailor this to your driving style.So, in terms of the construction and what you're gonna be getting in the kit here, guys, we're gonna see that all their software's gonna be right in this kit right here, as well as coming supplied with an OE style harness, which is going to make the installation virtually painless.So, in terms of the pricing here, you should expect to be spending right around 300 bucks for this kit. And I wanna brutally honest here. I've driven this unit on about three different cars right now, and while it didn't honestly blow my socks off in terms of horsepower and torque, the throttle response was definitely there. So, for the money here, for an extra 100 bucks, I honestly think a full-blown custom tune might be a little bit of a better buy, but if you're an extended warranty owner and you're looking to keep that in check, this is definitely gonna be a perfect option for you.So, again, while this product was brought out for the Mustang owner in mind that's looking to retain their factory warranty, if you still have it, as well as giving you a decent bump in throttle response, if you're gonna be looking for horsepower and torque, I would definitely suggest getting into a custom handheld tuner as, again, the difference in price here is only going to be around 100 bucks, plus it's gonna give you the ability to monitor a bunch of different parameters, as well as clear and scan engine codes.So, taking a quick look at the installation, just like I had said at the beginning of the video, you're gonna be looking at a very easy 1 out of 3 wrenches on the difficulty meter, and about 15 to 30 minutes to get this onto your car. Now, the ease of installation here is definitely gonna be another selling point for me, as there's really no guesswork to this. You are gonna be connecting this, pulling your negative battery terminal off, and then pulling your wire harness out from behind your gas pedal, and then you're good to go. It honestly does not get any easier than that.All right, so just to wrap things up here, some final thoughts. If you're the Mustang owner that's looking to improve your throttle response drastically, but you're not too into the idea of picking up a custom handheld tuner, this is definitely gonna be the option for you, not only based on the fact that this is gonna install in a heartbeat, but it's gonna make your daily commute that much more enjoyable.So, that's my quick review and breakdown of the JMS PedalMAX Drive By Wire Throttle Enhancement Device, fitting your 2005 through 2010 Mustang, available right here at

      Product Information

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


      • Eliminate Pedal Lag
      • Improves Vehicle Acceleration
      • Enhances Low and Mid-Range Horsepower and Torque
      • Eliminates Stalling of Manual Equipped Mustangs
      • Easy Plug & Play Installation
      • Stackable with Common Aftermarket OBD-II Programmers
      • Fits All 2005-2010 Mustangs


      Eliminates Pedal Lag. If you have ever made a left turn across oncoming traffic, you have most likely noticed a delay in throttle response that has left you wondering if you are going to make it across with out getting hit. This pedal lag is caused by the drive by wire accelerator found on the 2005-2010 S197 Mustangs. On previous generation Mustangs the gas pedal was connected to a physical cable that ran directly to the throttle body and provided immediate response. However, on modern Mustangs the gas pedal is controlled electronically, like a dimmer switch, which has to send the input signal from the pedal to the ECU, which then sends the signal to the throttle body, causing a momentary delay in response. JMS created their PedalMAX Electronic Throttle Enhancement Device to eliminate this annoying delay and improve your driving experience.

      Eliminates Stalling and Improves Power. The JMS PedalMAX will not only eliminate pedal lag, but it will also enhance throttle response, horse power and torque in the low to mid RPM range. The PedalMAX is also ideal for eliminating stalling when accelerating from a stop in manual equipped Mustangs, a notorious issue for the Shelby GT500's.

      Maximum Throttle Response. Out of the box the PedalMAX Throttle Enhancer is preset to provide maximum increase in throttle response. If you find the stock setting to be to aggressive for your driving needs you can insert the supplied 4-pin RED de-sensitizing plug into the device. The RED de-sensitizing plug will reset throttle response to about 60% of the maximum setting. However, with the optional Remote Throttle Control Knob (part# BX-6999) you can adjust throttle response from zero to maximum or anywhere in between to match your specific driving style.

      Stackable. The JMS PedalMAX can be stacked or used in conjunction with other aftermarket OBD-II programmers and monitors such as: SCT, Diablosport, Hypertech, Superchips, Bully Dog, and Edge as well as JMS' own BoostMAX Performance Booster.

      Modern Electronics. The PedalMAX Drive By Wire Throttle Enhancement Device features JMS's exclusive state of the art digital technology housed in a proprietary sealed enclosure. The PedalMAX comes complete with plug and play wiring harness using OEM connectors for a quick installation.

      Easy Plug & Play Installation. The PedalMAX Throttle Enhancer simply connects to the factory stock pedal position sensor using an OEM style connector with no permanent modifications required. PedalMAX is 100% reversible making it warranty friendly.

      Application. This JMS PedalMAX Drive By Wire Throttle Enhancement Device is designed for use on all 2005-2010 Mustangs including the V6, GT, Bullitt and Shelby GT500 models.

      Fitment: 2005 2006 2007 2008 2009 2010 Details

      MPN# PX0510F

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (25)

      Write a Review

      Ratings Summary

      4.0 out of 5 overall rating from 25 customers

      • January 20, 2020

        5 2007 GT - Gordo

        fix the pedal lag problem

        I got the dreaded throttle lag problem. Tried to "re-calibration" procedure - no joy. This enhancement fixed it. The adjustment potentiometer is now included - nice. The hardest part of the install was to run the always on 12v wire to the battery; a def. PIA. Probably 3 hours total install with the hassle of fishing through the firewall and running the 12 wire. Most likely 30 minutes without installing the 12v supply

        Helpful (1)
      • December 23, 2019

        4 2006 GT - Keithbrown20010


        I recently purchased this item for my 06 mustang GT convertible. The install sucked being a larger guy because it required me laying on my back under the steering column to reach the gas pedal. Once I connected everything and ran the 12v line to the battery it started right up with no issue. Took it around the block a few times so it could calibrate and it made a huge difference. It makes the car feel totally different because there is no lag in-between when you step on the gas and the car accelerating. Definitely happy with this product. My only recommendation is to google the instructions online because they were detailed a lot better than what I received with the device.

        Helpful (0)
      • September 24, 2019

        1 2006 GT - 06gt

        Pedal Max Throttle response

        I'm sure this works well on a stock car but would not work with my tune. When I plugged the Pedal Max in my car would not start. I tried to figure it out triple checking the connections someone suggested that one of the pins might be bent. Everything was perfect. Finally someone told me if I already have a tune the Pedal Max reads the sensitivity and would read it 3 times the adjustment so it would go into flood mode not allowing the car to start. Kinda bummed about the whole thing.

        Helpful (0)
      • June 14, 2018

        5 2007 V6 - shiningdialga

        Works great!

        Bought this for my V6 pony, and what a difference! The pedal feels MUCH more responsive now, and the car feels so much more alive. Great for me, because I did not want to have to deal with a tuner and the potential headache that comes with it. My only grip is the fact that the cord doesn't have a latch that secure it to the pedal connector, so I had to secure it with a zip tie. Seems like it could be a safety issue if it detaches and you lose throttle...

        Helpful (10)
      • March 20, 2018

        1 2007 GT - Cobra0473

        Don’t waste your money!

        This product did nothing to my car and if you want a better throttle response, you need to do it through a tune. Simple. American Muscle would not return it because it was installed, so be careful if you buy this and try to return it, you’ll be out $350 as I was.

        Helpful (10)
      • January 08, 2018

        5 2017 GT - MCO

        WOW!!! Buy it ASAP!!!

        Just get the credit card out and buy it ASAP. I love it and you can tell the second you add it. Get the cable adjustment too. Took me 37 minutes to install it.

        Helpful (10)
      • December 21, 2017

        5 2006 GT - KenD

        Throttle Enhancement

        Installed 12/14. In Drive you can feel it kick in a little. The enhancement really is felt when manually shifting. The acceleration in 1st at a stop and then shifting to 2nd is when it really kicks in. I would recommend this to all who own a GT - 05 to 09.

        Helpful (10)
      • May 03, 2017

        5 2007 GT - BlaineV

        PedalMAX performance.

        The install was 10 min, product performed as advertised, it made a world of difference, seat of the pants feeling, well worth the price.

        Helpful (9)
      • April 17, 2017

        4 2007 GT - RichardS

        PedalMAX in 2007 GT

        I bought the PedalMAX to install in a 2007 Mustang GT convertible. The only MOD is an Airaid CAI. The 4.6L has plenty of power for me, but I’ve been frustrated by the delayed throttle response. I originally thought there was a problem with the car until I found that this response is normal. I didn’t want to get into the expense of a tuner and didn’t see the need for multiple tunes. Eventually I came across the PedalMAX. It arrived quickly and installed easily. The throttle response is now terrific and significantly improved. It’s almost like driving a whole new car. It doesn’t increase horse power or torque, so it seems a bit pricey, but it’s definitely been worth it to me. Much more fun to drive. Now I’d just like to find out why it was like that in the first place.

        Helpful (11)
      • March 29, 2017

        5 2006 GT - LawrenceC

        Bring a Ice Cooler!

        My JMS PedalMax Drive by wire throttle enhancement is Perfect....a unique difference! Quick! Paired up with my SR Performance Throttle Body and adding the "Remote Control Knob" and then slam Bam it all together with a "Bama Tune",....well you just might want to bring a bucket of ice to cool that baby off! And if you feel it's a little too quick off the line and a little too responsive, well than just dial things back a little more to your liking!

        Helpful (10)

      Questions & Answers (5 answers)

      5 Top Rated Questions

      Based on what I already read, I just want to clarify that this part isn’t necessary when you have a tuning device, right? Provided that you give the Bama team the proper date log information specific to your vehicle, and time after you request finer tuning and aggressiveness especially on the race tune.

      • If you already have a custom tune on your car the JMS PedalMAX Drive By Wire Throttle Enhancement Device would be redundant as it would also help the throttle control like the tuner.

      Helpful (3)

      I have a 2007 with full exhaust, including headers, FR cool air intake, 4.10 rear end and it's all tuned with an scc (?) tuner... which I still have. Set to max everything with 93 fuel. All said I'm frustrated with the response and torque down low if just cruising. If I'm shifting manually and revs are up, all is good. It seems like there is a lot of throttle play with this car and then I found this product but it has more see reviews. 1. Can the throttle lag be tuned out with the tuner? 2. If not, what do you know about this product in the real world with my mods etc.

      • With the tuner that you have, you are able to tune out throttle lag as a custom tune will be able to allow you to have a quicker throttle response time. For further tuning information, please contact BAMA Performance by responding to your most recent ticket for tuning inquiries.

      Helpful (3)

      can this be used with the sct livewire plus?

      • The JMS PedalMAX does work with the SCT tuners.

      Helpful (2)

      Will this work with automatic

      • The JMS PedalMAX Drive will work with both manual and automatic transmissions.

      Helpful (0)

      To KevinD92... thank you for response regarding my SCT tuner being able to help me reduce the throttle lag in my mustang. Your last sentence of instruction I did not understand... please contact BAMA Performance by responding to your most recent ticket for tuning inquiries.

      • Hello! Sorry for the confusion, Kevin was just recommending that you reach out to the tuners here at BAMA Performance through email or phone if you have any more tune related questions.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) PedalMAX Throttle Enhancer
      • (1) Plug & Play Wiring Harness
      • (1) Red De-Sensitizing Plug
      • (4) Zip Ties
      • (1) Mini-Screwdriver
      • Installation Instructions

      Tech Specs

      Will It Fit My Mustang

      • Bullitt - 08, 09
      • GT - 05, 06, 07, 08, 09, 10
      • GT500 - 07, 08, 09, 10
      • V6 - 05, 06, 07, 08, 09, 10

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