Does your GM truck feel like it's fighting against itself when accelerating? That rough hesitation, the unexpected shuddering, and that nagging feeling that something's not quite right? You're not imagining things - it's likely Active Fuel Management (AFM) switching off cylinders to save fuel, but at the cost of performance and reliability.
Many GM trucks and SUVs come equipped with AFM or DFM systems that automatically deactivate cylinders during light driving conditions. While this might improve fuel economy slightly, it creates a host of problems. The constant switching between cylinder counts causes engine vibrations, rough idling, and premature wear on internal components. Over time, this can lead to serious engine damage and expensive repairs.
Our AFM/DFM Disabler is the straightforward answer you've been looking for. This innovative device plugs directly into your vehicle's OBD-II port, requiring no special tools or mechanical knowledge. Once connected, it prevents the engine from switching into fuel-saving mode, keeping all cylinders active at all times. The result? Smooth, consistent power delivery, reduced engine vibrations, and elimination of that annoying hesitation when you need power most.
Compatible with a wide range of popular GM models including Silverado, Sierra, Yukon, and Escalade models equipped with 4.3L, 5.3L, 6.0L, and 6.2L V6 and V8 engines. Whether you're towing heavy loads, navigating mountain roads, or just want the smoothest possible daily driving experience, this disabler ensures your engine performs at its peak capability.
Unlike performance chips that alter your vehicle's programming, our disabler works independently of the ECU. Simply unplug it to return to factory settings instantly. This 2025 upgraded model offers enhanced compatibility and reliability compared to earlier versions. We stand behind every unit with a 100% satisfaction guarantee - if you're not completely satisfied, we'll make it right.
Don't let fuel-saving technology compromise your driving experience. Take control of your engine's performance today and enjoy the smooth, powerful ride your GM vehicle was designed to deliver.
