Talk to a Sierra 1500 Sales Tech
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$12k Summer Sweepstakes! Enter Daily>

JMS PedalMAX Drive By Wire Throttle Enhancement Device with Control Knob (08-18 Sierra 1500)

Item S500099
JMS PedalMAX Drive By Wire Throttle Enhancement Device with Control Knob (08-18 Sierra 1500)
Verify parts fit and get product recommendations.
Sierra 1500 Sales Techs: Connect Now M-F 8:30A-11P, Sat-Sun 8:30A-9P
Our Price

$289.00 (kit)

FREE Shipping Market Price $382.99 You Save 25% ($93.99) Up to 10% off for Military & First Responders! See Details

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
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.

    or use

      Product Information

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


      • Eliminate Pedal Lag
      • Improves Vehicle Acceleration
      • Increases Low and Mid-Range Horsepower and Torque
      • Easy Plug-and-Play Installation
      • Includes Remote Throttle Control Knob
      • Stackable with Common Aftermarket OBD-II Programmers
      • Fits All 2008-2018 GMC Sierra 1500 Models


      Say Goodbye to Pedal Lag. Get an instant pedal response on your GMC Sierra with the advanced JMS PedalMAX Throttle Enhancement Device. When driving in your Sierra and have noticed a delay in throttle response between the time you step on the gas pedal and accelerate, that is due to the modern Electronic Throttle Control (ETC) Technology, which is also known as Drive By Wire. The gas pedal is controlled electronically by sending a signal from the pedal to the ECU, which then sends the signal to the throttle body, which results in that delay. JMS has the perfect solution to get rid of that issue with their PedalMAX Drive By Wire Throttle Enhancement Device. The PedalMAX is designed to eliminate this annoying delay by enhancing the signal between the pedal, ECU and throttle body to make it more sensitive and improve your driving experience.

      Improves Power and Improves Power. The JMS PedalMAX will not only eliminate pedal lag, but it will also enhance the throttle response and improve your horsepower and torque in the low to mid RPM range.

      Maximum Throttle Response. The PedalMAX Throttle Enhancer is preset to provide maximum increase in throttle response. If you find the stock setting to be too 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, this kit also includes a Remote Throttle Control Knob, so you can adjust your throttle response from 0% to 100% on the fly 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. It is compatible with products from manufacturers such as SCT, DiabloSport, Edge, Superchips, Bully Dog, and Hypertech.

      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-and-Play Installation. The PedalMAX Throttle Enhancement Device 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 with Remote Adjustment Knob is designed for use on all 2008-2018 GMC Sierra 1500 models.

      Shop All Truck Parts And Accessories

      Shop All Truck Throttle Enhancements: Controllers And More

      Shop All Truck Tuners


      JMS PX1015GMTK

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) PedalMAX Throttle Enhancer
      • (1) Plug-and-Play Wiring Harness
      • (1) RED De-Sensitizing Plug
      • (1) Knob with 5 ft. of Wire
      • (4) Zip Ties
      • (1) Mini-Screwdriver
      • Installation Instructions

      Customer Reviews (97)

        Questions & Answers

        10 More Questions

            Related Sierra 1500 Categories