DFM Pro

Description

New for the DFM Pro is built-in pedal booster control, allowing you to adjust throttle sensitivity on the fly directly from the app. Fine-tune your driving feel in seconds, whether you want smoother daily driving response or a more aggressive throttle curve for towing and spirited driving. No wiring. No separate control module. No dash-mounted hardware. The smartphone app also allows the ability to read and clear Diagnostic Trouble Codes (DTC's), check your vehicles Emissions Readiness Monitors and even Re-Activate DFM at the touch of a button should you ever want to.

Increase efficiency and performance with Range Technology AFM/DFM and Start-Stop OBDII controls. Range Technology specializes in advanced electronic solutions designed to address Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems found in modern GM V8 engines. Founded to solve real-world drivability and reliability concerns associated with cylinder deactivation, Range identified the need for a simple, effective way to keep engines operating in full V8 mode without invasive modifications or custom tuning. Range developed plug-and-play devices that interface directly with the vehicle’s onboard diagnostics system, intelligently preventing AFM and DFM activation while preserving factory calibrations, emissions systems, and vehicle safety features. These solutions help eliminate unwanted transitions, improve throttle response, enhance exhaust sound consistency, and support long-term engine reliability. Engineered specifically for GM V8 applications, Range products are continuously updated to support new model years and powertrain configurations.

Range developed plug-and-play devices that interface directly with the vehicle’s onboard diagnostics system, intelligently preventing AFM and DFM activation while preserving factory calibrations, emissions systems, and vehicle safety features. These solutions help eliminate unwanted transitions, improve throttle response, enhance exhaust sound consistency, and support long-term engine reliability. Engineered specifically for GM V8 applications, Range products are continuously updated to support new model years and powertrain configurations.

Fitment

This part fits the following vehicles.

Features & benefits

• Disables Dynamic Fuel Management (DFM)
• Disables Engine Auto Start/Stop systems
• Built-in Adjustable Throttle Sensitivity
• Read and Clear Diagnostic Trouble Codes
• Check Vehicle Emissions Readiness Status
• Smartphone app integration for on-the-fly pedal boost control
• Smart inline technology integrates seamlessly with the ECM
• Re-Activate DFM anytime from the Enable/Disable feature within the app without removing the module
• Allows a true ‘Return to Stock’ status when removed with no trace for worry free dealer services
• All-time V8 mode means better power on demand, a more consistent driving experience, reduced engine and valvetrain wear, and improved long term engine reliability
• Enjoy that V8 rumble and avoid unpleasant exhaust notes and drone from running in cylinder deactivation mode
• Plug-and-play installation can be completed in minutes, no wiring, no modifications
• To confirm your 2022 model truck is compatible with this unit, check your VIN. The 12th digit in a Refresh model must be a '5' or higher
• This device is compatible with ALL 2023-2026 truck and ALL 2021-2026 SUV models with the 5.3L and 6.2L engine
• Some applications may still encounter 0-Cylinder Mode (Decel Fuel Cutoff) while coasting when 0% throttle input is detected at the ECM
• We do not control the in-cab Auto Start/Stop switch on the dash, so it will still illuminate on/off with the button being pressed as factory, even though the system is always disabled with our module installed at the ECM.
• We do recommend removing the DFM Module before performing any GM Over-the-Air updates or visiting the dealer for vehicle updates via OBD-II port
• Assembled in USA

Specifications

Warranty

1 Year

Videos and guides

California residents

WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.