DFM Module for Refresh V8 models – 2021-2026 GM SUV and 2022.5-2026 GM 1500 Truck
$276.42
Disables Dynamic Fuel Management (DFM)
Disables Engine Auto Start/Stop
Smart inline technology integrates seamlessly with the ECM
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
50-State CARB Compliant EO# D-115-32 for 2021-2024 model years. 2025-2026 pending
First to market product for Global B and Refresh model support
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 2021-2026 SUV models with the 5.3L and 6.2L engine
Some applications may still encounter 0-Cylinder Mode 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 iluminate on/off with the button being pressed as it 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
