2019-2021 Chevrolet Silverado 1500 AFM/DFM Disabler
Range Technology brings plug-and-play power to your 2019–2021 Silverado and Sierra 1500. Instantly disable AFM/DFM or Start/Stop for a stronger, more responsive ride. Enjoy consistent V8 performance, improved towing confidence, and smoother shifting—all without voiding your factory warranty.
Run all cylinders, all the time. The Range AFM/DFM Disabler keeps your GM V6 or V8 in full power mode, blocking Active and Dynamic Fuel Management without touching your ECU.