AFM Disabler Active Fuel Management Delete Disabler AFM/DFM Disabler Compatible with V6 & V8 GM Motors AFM Disabler 5.3 Silverado (Chevy GMC Sierra GMC Yukon Cadillac Escalade etc)4.3L 5.3L 6.0L 6.2L

The media could not be loaded. Before this little plug-in, my ’15 Silverado felt like it had a split personality. One minute it’s a V8, next minute it’s sipping fuel like a Prius, and all the while the transitions were jerky enough to make you notice. I didn’t even realize how much that AFM/DFM system was affecting the ride until I disabled it.This AFM disabler took all of 30 seconds to install—literally just plug it into the OBD-II port. No tools, no tech skills, no hunting through menus or risking a voided warranty. The best part? My truck stays in V8 mode now. It actually drives like a truck again—no weird lag, no hesitation when accelerating, no more feeling like it’s “thinking” too hard before giving me power.It’s been weeks and the difference in performance is still night and day. I haven’t noticed any negative impact on fuel economy either, which was my only real hesitation. Plus, if I ever need to go back to stock, I just unplug it. That’s it.It’s rare when a product is this simple, this affordable, and actually works exactly as promised. If you drive a GM with AFM or DFM and you’re tired of your engine playing Jekyll and Hyde, this thing is worth every penny.

The media could not be loaded. We put this AFM/DFM Disabler on our pickup and it has helped so much. It just plugs right into the OBD-II port, no extra tools or apps needed. The way it works is to keep the engine in full V8 mode, bypassing the Active Fuel Management system that switches cylinders on and off. The difference is almost instantly noticeable ... my truck feels so more responsive. I get a much smoother power delivery, and there is no lag when accelerating like I had before.What I love most is how it doesn’t mess with the ECU. I can unplug it, and everything goes back to factory settings, so the dealership has no idea and it doesn't void my warranty.Installation is pretty idiot proof - I just plugged it in under the dash - that's it. The driving experience is undeniably better with more consistent power and none of that hesitation or slippage feeling.

My husband wanted it for his truck. He did not like how his truck would drop cylinders (By design). He said that would eventually cause damage to the lifters and camshaft . This device eliminates the drop so he gets full power ALL the time. He said it runs smoother and stronger now. He is VERY happy with it!! Also, it was super simple to install. All he had to do was plug it into a port under the steering wheel. And he has not noticed a drop in fuel mileage. The price we paid was a fourth of what he would have paid at a specialty site for trucks!

The media could not be loaded. I bought this because I was tired of my truck constantly switching between cylinders, messing with performance and causing that sluggish feeling when I just wanted smooth, consistent power. I installed the AFM Disabler. It was super easy—just plug it in to. The OBDII port, and it does its thing. The function lights are easy to see, but not blinding at night when it’s dark in the cab. My truck now runs on all cylinders full-time, making acceleration feel stronger and more responsive, especially when towing or on the highway. It eliminates that weird lag I used to experience when the system decided to switch modes. While fuel economy might take a slight hit, the trade-off for better throttle response and overall driving experience is totally worth it. When I want to return it to its OEM state all I need to do is unplug it because it doesn’t mess with the ECU.

Great product does as advertised.Vehicle offers more power as its stays in V6 mode. Also noticed better performance in the lower gears (less shuddering and hesitation).Took off one star as it’s pulling power from battery after car is off and I’ve left vehicle. I would unplug if I’m not planning to drive for a few days.

After installing this AFM disabler, the engine response speed has been greatly improved, the throttle response is more sensitive, and the acceleration is faster. The car is more powerful to drive, especially more confident when overtaking at high speed. The disabler is stable and reliable, with high quality, and there is no abnormality after long-term use.

Has worked just fine since I bought it. Easy to use just plug it in. Value is great compared to (higher) end brands. Durability it's been 3 months with no problems so hope it lasts.

I always felt that the power output was unstable before, and it was particularly slow when overtaking at high speed. Now the throttle response is more direct, and the driving feel has improved a lot! The installation is also very simple, which is really worry-free and practical!