Range Technology RA007 DFM Module for GM Refresh V8 Trucks & SUVs

Overview

Meet Range Technology's RA007 DFM Module, a compact inline device designed for late-model GM Refresh SUVs and 1500-series trucks with Dynamic Fuel Management. It offers a targeted way to override the factory cylinder management system, allowing the engine to run on all cylinders, all the time. While this may enhance the sense of power and responsiveness, it does not permanently modify the engine hardware, and compatibility depends on your exact build.

In practice, drivers may notice more immediate throttle response and steadier power delivery, especially when accelerating from a stop or merging onto highways. The RA007 is designed to work alongside your ECM by simply plugging into the harness, enabling a continuous V8 experience without the engine automatically switching cylinders off. It can be removed to return to stock status, with no trace left for dealer service if that is your preference.

What it does

• Disables Dynamic Fuel Management (DFM) and Engine Auto Start/Stop systems
• Smart inline technology integrates seamlessly with the ECM
• Allows a true ‘Return to Stock’ status when removed, for worry-free dealer services
• All-time V8 mode delivers power on demand and steadier driving, with reduced cylinder-deactivation interruptions
• Preserves the V8 sound and minimizes drone associated with cylinder deactivation

Real‑world benefits and driving scenarios

Owners report a more consistent power curve during spirited starts, smoother mid‑range acceleration, and a more natural engine character at cruising speeds. The module focuses on maintaining full cylinder operation, which can translate to a more linear response in everyday driving, especially when passing or merging on busy roads.

While individual results vary, the RA007 aims to provide a potential edge in everyday driving by reducing interruptions caused by cylinder deactivation, which may contribute to a more cohesive driving feel over time.

Compatibility and installation

The RA007 targets 2021–2024 GM SUV models and 2022.5–2024 GM 1500 Refresh V8 trucks. Installation is designed to be plug‑in to the ECM with no permanent wiring changes, and removal is straightforward if you need to return to stock for service visits. Always verify fitment for your exact vehicle configuration before purchasing.

Safety and notes

Note: This product may involve chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Follow all installation instructions and handle with care.