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

I was hesitant to buy specifically one of these unit of this brand just because of "What you pay for is what you get" after reading much reviews for another brand "Range" and didn't want to spend $230+ for something that does exactly the same vs these Amazon brands (signifcantly Cheaper). I have found these Amazon brands to be more reputable with reliability, consistency, and MPG in mind. so I pulled the trigger on one of these Amazon ones instead. I was kind of hesitant to write a review because I was thinking if I should wait a bit to test and trial for this AFM disabler but I did so that it might help others make a decision. But I did order it. Arrived quickly, easy installation. Nothing durable about a unit like this of this nature, it's responsive so far, hence it's working so its compatibility with my suburban is good. Good for it's value. I drive a 2019 Suburban 5.3 4WD LT WITH 107,XXX miles , six days into it so far and I have not seen it switched back into v4 at all. Before I ran the AFM DISABLER, I would normally drive it in the L mode and leave it in L5 and it would never go back into v4 at all but with L5, the engine will rpm around 2500-2600 at L5, hence not get good gas mileage, while L6 rpm will go alot lower around I think around 1500-2000 and save gas more gas but the AFM will engage and go back to v4 BUT! (Just less frequently vs regular DRIVE mode whereas it would be more frequent) With this unit installed, according to the readouts, I believe I have saved a few MPG I want to say around 4mpg more. I use to have best scores of 17.x but with this unit on, I was getting 20-21.3 mpg on the freeway. The picture will help you get a better idea; Speed, rpm, etc So far, Im happy with it, not super stoked about it, but better than having to see the car go into the stupid v4 mode And prematurely damaging the engine. Previously, having to replace 1 lifter, rollers and 2 valves. I am still listening to how my suburban is responding and behaving with this AFM disabler on and connected). I will update review from time to time.

I purchased a 2016 Chevy Silverado with the 5.3L V8 two days ago knowing of the 4/8 AMF issue already. It only has 69K miles on it and runs perfect, but I wasn't taking a chance. I immediately ordered the AMF disabled and received it the day after buying the truck. WOW what a difference it made! Running on all 8 cylinders now permanently. Throttle response is so much better, shutter has been eliminated completely and the engine sounds excellent. Hopefully with it having very low mileage to begin with it doesn't have to much lifter damage, but this will definitely eliminate any further damage in the future. Don't hesitate to purchase this, save your motor and your wallet from unnecessary expenses in the future.

Awesome product! My idle immediately was better, no more hesitation, no dash lights, constant power going down the road. My motor is no longer confused. This disabler is not coming out of my OBD reader, it is a permanent fixture. I dont know for other people, but the disabler shuts off when not in use so as to not drain the battery.

The installation process was simple and straightforward, with perfect integration and no error codes or issues. Now the engine runs more smoothly and responds more responsively, especially under load. I'm also very satisfied with the improved driving stability and the peace of mind that comes from the system no longer frequently switching modes. In conclusion, this is a very effective and well-designed product, and I highly recommend it!

I purchased this AFM/DFM Disabler for my 2017 Chevrolet Silverado Black Widow with only 51k miles, and overall it has been a solid device. It has consistently kept my truck in V8 mode, which is exactly what I wanted. I had read some reviews mentioning concerns about the device draining the battery, but I personally have not experienced any battery issues while using it. It has worked reliably since I plugged it in. I also saw claims that it could improve fuel economy. In my case, I haven’t noticed any change from my 9.3 MPG average, but my main goal was maintaining V8 performance, and it does that well. The price was reasonable, and I would recommend this product to others looking to disable AFM/DFM. Note to seller: I’d also be willing to test and review more of your products in the future. 4-star review ⭐⭐⭐⭐☆

My 2016 5.3 has 105k and I've never had an issue with it. But after reading problems that can happen I purchased the disabled and WOW so glad I did. Performance much increased. Gas mileage has a slight increase, but I also noticed a better downshift on the transmission. I used to have a slight chatter at about 1000 rpm's when getting back on the gas, that's gone. Overall just a much more pleasant vehicle to drive.

As i did look at the reviews for this product as i was still a skeptic but was proven wrong. It does work to disable the AFM/DFM on my 2017 GMC but when I tried to take my truck thru emissions, their reader could not pick up anything as if codes were cleared via the OBDII. In the future I will take the disabler out a few days before going thru emissions again.

I am loving this AFM disabler. I wish I knew about it earlier. It works perfectly seamless and now finally I don’t have to worry about engine lifters going bad. Works great with my 2019 Chevy suburban and no more switching from V8 to V4.

worked perfect on my Camaro 2018

I will start by saying that I am a retired mechanic so my review might carry a little weight. With that said, this disabler works great. I have a 2018 Sierra 1500 and I was a bit skeptical because of some of the reviews, but I have had zero issues after one month of using. The exact opposite, actually. No more bogging down on 4 cylinders. The throttle is much more responsive. I installed a cat-back Flowmaster exhaust system because the original GM muffler rotted out on both ends. The drone from the AFM was driving me nuts. The issue has disappeared. I was expecting a bit lower gas mileage, but it's actually better now. Before using the disabler my average fuel economy was 17.5L/100kms I ran it for 100kms after installing the disabler and it dropped to 15L/100kms. I also let the truck sit for a solid week to see if it drained the battery. Before starting it I took a voltage reading at the battery and it was 12.6v, so no parasitic drain from the disabler. I didn't experience any check engine light as some others mentioned. All in all, I consider this disabler to be one of the, if not the best purchases I have made for my Sierra. I 100% recommend this product.

説明通りの動作。AFM作動すること無く機能してます。商品発送後もこまめに進捗の連絡を貰えたので配送中も安心して待つ事ができました。 商品・顧客ケア共に満足のいく取引ができたので良かったです。

Just wonderful. No more rough downshifts and hesitation when I step on the accelerator. Much smoother drive. I got it for my 2020 sierra 1500 with the 6-gear transmission.

Funciona y eso es lo que importa