FN Tuned Throttle Response Controller
GMC Sierra 2500HD

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FN Tuned Throttle Response Controller
GMC Sierra 2500HD

$249.99
$299.99
-17%

Pay in 4 interest-free installments of $49.99 with Learn more

Don’t let throttle lag hold your GMC Sierra 2500HD back. Eliminate the lag with the FN Tuned throttle response controller. Customize the pedal feedback with 4 modes and 36 settings. The ultimate plug-and-play truck accessory for your Sierra 2500HD. Get yours now!

SELECT YOUR SIERRA 2500HD:

FN Tuned is compatible with GMC Sierra 2500HD's all submodels and trim levels: AT4, AT4X, Denali, Denali Ultimate, Pro, SLE, SLE2 H/D Creq Cab, SLT

Fast Shipping

100% Satisfaction Guarantee

2-Year Warranty

WHY CHOOSE FN TUNED

FULL POWER ON DEMAND

Eliminate throttle lag and pull, tow, or haul easier with all the power your truck has.

BLUETOOTH-CONTROLLED

No buttons to fiddle with—launch the app and tap through different modes.

FULLY PROGRAMMABLE

Four driving modes with nine aggressiveness levels for each to dial in the perfect response.

THEFT PROTECTION

Enable Anti-Theft mode and disable the gas pedal. Keep your peace of mind.

DRIVE SMARTER

Switch to Fn Slow and cruise efficiently or get precision on tricky terrain.

PLUG, PLAY, AND GO

No mechanics, no cutting wires, no hassle. Install in 15 minutes and GO!

WARRANTY-SAFE UPGRADE

Throttle response upgraded, factory settings untouched. Your warranty stays intact.

ZERO HASSLE, REAL SUPPORT

Comes with full coverage for 2 full years and real support straight from the U.S.

WAKE UP YOUR GMC SIERRA 2500HD

The GMC Sierra 2500HD is built like a tank with a suit on. Heavy-duty frame, serious towing muscle, and a cabin that feels more premium than most trucks in its class. It’s made for long hauls, big trailers, and real work, but the factory drive-by-wire system is lazy and laggy. You need to make it respond as it should.

The FN Tuned throttle response controller removes the drive-by-wire throttle lag and gives your Sierra instant throttle response. Power comes in sooner, smoother, and more predictably, especially when you’re towing or driving with a loaded truck bed. With programmable driving modes, you can set the pedal feel to match how you drive. Plug-and-play install. Bluetooth control. Completely untraceable. FN Tuned is the smart performance upgrade that wakes your Sierra 2500HD up.

FN Tuned Throttle Response Controller for GMC Sierra 2500HD

Install in 15 Minutes. No Tools Needed.

  • ✔

    Turn off your vehicle and keep the key fob at least 35 feet away. This prevents the key fob from triggering the ECU, ensuring a complete electrical shutdown.

  • ✔

    Locate the pedal position sensor (usually behind or at the top of the gas pedal assembly) and unplug the factory connector.

  • ✔

    Connect the male and female ends of the FN Tuned harness to the corresponding sockets. Ensure you hear a “click” each time.

  • ✔

    Secure the FN Tuned module somewhere in the footwell area with the included zip ties, make sure the module or the wiring does not block any moving parts.

  • ✔

    Activate your unit using the mobile app.

Start ripping!

LOVED BY MANY

Real-world drivers have dropped thousands of five-star reviews, all raving about how Fn Tuned took their ride to the next level. Check them out and see what’s coming your way!

See Real World Reviews