Adjust throttle response, tire size, gear ratio, and disable AFM/DFM, no tuning or tools needed. Plug-and-play power, performance, and precision for your Silverado, Sierra, or SUV.

Jul 14, 2025 · Range Technology Active Fuel Management Disabler RA003. This is a best-selling AFM disabler that can eliminate cylinder drop and speed bottleneck for any GM 5.3L Active Fuel …

Get the most out of every mile with a Range Technology AFM/DFM Disabler Device. These modules allow your V6 or V8 GM vehicle to run in full cylinder mode at all times. This patented technology is …

Shop plug-and-play AFM/DFM disablers compatible with GM V6 and V8 engines. Easy installation, no ECU reprogramming needed.

Whether you’re towing, off-roading, or daily driving, the Range Technology AFM/DFM Disabler ensures your engine stays in full power mode for better throttle response, smoother acceleration, and …

Apr 21, 2025 · The Range Technology RA003B is a plug-in module that connects to your vehicle’s OBD-II port to override the factory fuel management settings. Once installed, it prevents the computer from …

We’ve explained the seven most common Range Technology AFM disabler problems you might encounter. To fix most of these issues, unplug the disabler when your engine doesn’t require a …

Aug 25, 2025 · What Is the Range Technology AFM Disabler? The Range Technology AFM Disabler is a plug-and-play device that prevents your GM vehicle’s Active Fuel Management (AFM) or Dynamic …

Nov 3, 2024 · When it comes to keeping your V6 or V8 GM engine running smoothly and preventing costly repairs, you can’t go wrong with the Range Technology AFM/DFM Disabler. This little device …

Eliminate active fuel management cylinder deactivation with Range Technology. Shop our plug-and-play AFM/DFM Disablers and Start/Stop Disablers for GM vehicles.