GM truck and SUV owners, if you're tired of the rough cylinder deactivation in your vehicle, this AYWCAR AFM disabler is the solution you've been looking for! This simple plug-and-play device completely disables both Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems, keeping your engine in full V8 or V6 mode all the time. The installation couldn't be easier - just plug it into your OBD-II port and it starts working immediately. No reprogramming of your factory ECU required, and when you unplug it, your vehicle returns to factory settings. The difference in driving experience is incredible - no more annoying vibration when cylinders deactivate, much smoother acceleration, and improved engine reliability by preventing those common collapsed and sticking lifter issues that plague GM engines with AFM/DFM. The device has clear light indicators that show when it's powered on and working properly. It's compatible with most GM V6 and V8 vehicles with AFM/DFM systems, including trucks, SUVs, and cars. Important note though - it's NOT compatible with 2019+ Silverado/Sierra with 5.3/6.2L and 10-speed transmissions, C8 Corvettes, 2022+ refresh models, or 2023-2024 models. If you do extended storage, just unplug it to prevent battery drain. For GM owners frustrated with cylinder deactivation issues, this simple device delivers a much smoother driving experience and potentially prevents expensive engine repairs down the road!
Free 30-day returns 
Free 30-day returns
