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Unleash the full power of your GM V8 engine with the Range Technology DFM Module, engineered specifically for 2021–2026 GM SUVs and 2022.5–2026 GM 1500 trucks. Designed to disable Dynamic Fuel Management (DFM) and keep your engine running in full-cylinder mode, this plug-and-play module restores the consistent power, performance, and exhaust tone your truck or SUV was built for. By preventing unwanted cylinder deactivation, the Range DFM Module eliminates the lag, vibration, and inconsistent throttle response often caused by GM’s factory fuel management systems. Simply plug the module into your ECM and enjoy instant results, no tuning, tools, or permanent modifications required.
Whether you’re towing, daily driving, or just want your V8 to stay a V8, the Range Technology DFM Disabler ensures your vehicle delivers smooth, responsive power every time you hit the gas. Compatible with late-model Chevrolet Silverado 1500, GMC Sierra 1500, Tahoe, Suburban, Yukon, and other Escalade, this innovative device provides the ultimate solution for drivers who want to take control of their vehicle’s performance. Manufactured and tested in the USA, the Range DFM Module offers safe, reliable performance and can be removed at any time to return to stock operation.
Experience the difference that comes from running all eight cylinders all the time. Stronger acceleration, better towing power, and a more aggressive exhaust note, without voiding your warranty or altering your factory tune. The Range Technology DFM Module is the most effective way to disable GM’s Dynamic Fuel Management and Auto Start/Stop system, improve drivability, and maximize your truck or SUV’s true potential.
*Some vehicles may still engage 0-cylinder mode while coasting with this product installed. During extensive testing, it was found that completely disabling this function led to undesirable driving conditions and safety concerns. Disabling 0-cylinder mode while coasting resulted in a notable decrease in fuel efficiency, with a loss of 2-3 MPG, as the engine continues to fuel and fire the injectors even during coasting. This fueling also creates an unsettling sensation during deceleration, as it feels like the vehicle is still accelerating slightly, despite 0% throttle input. This requires harder braking, especially in scenarios like towing or descending a long grade, leading to undesirable driving conditions.