AFM Disabler, AFM/DFM Disabler, Active Fuel Management Disabler RA003 Compatible with GM V6 V8 AFM Disabler 5.3 Silverado (GMC Sierra Yukon Chevy Tahoe Avalanche Cadillac Escalade) 4.3L 5.3L 6.0L 6.2L

Simple plug and play , 08 suburban , now runs like a normal truck , Now I will say that before I was getting 12.5 to 13 per gallon on my city run to work now I am getting 13.5 to 14 . haven't really gave it the beans on a long trip but runs so much better with out the AFM rattling around and I get just as good if not a little better GPM.

The overall operation of this device is incredibly. I have an all new truck now. I installed this device Saturday and took a 48 mile trip this morning. I average 25.7 miles per gallon and that blew my mind. My truck feels so much better as performance. I highly recommend to all truck owners. Oh by the way I have a 21 Silverado crew cab with a 5.3 Liter engine

I plugged this thing in and drove for five hours to Tennessee . It worked perfectly V8 all the way. The only problem I had and absolutely scarred me to death was I upon getting out of my Tahoe I somehow kicked the little box. Next morning I went to drive it and the check engine light came on. Took it to Autozone the guy scanned it and said your computer is fried. Started back and the dash was saying all kinds of things “check power steering” “ 4wheel drive”. I was freaking out. I called my son that had drove down told him to bring some tools. We unhooked the negative side of the battery for 20 minutes and everything was fine from there. I can only imagine when I accidentally kicked the little box it screwed with the computer. It’s back plugged in and working fine. I am going to secure it in maybe with a zip tie or something and put a piece of electrical tape over the lights that are on it.

I bought this back in March of 2025 so coming up on a year, I don't like to give reviews too soon on products and this is why. This thing has started to glitch out on me. I noticed a week or so ago that my V4 function was coming on and I looked at the LEDs on the module and there were only two lit, there are supposed to be all four. I unplugged it and turned the truck back on and it worked for about a week and started acting up again. I can't return it so I am going to buy a better more expensive one in hopes that it has better longevity. I bought this to stop the cylinder switching which has ruined the engine on my Silverado twice now. The fact that I have to buy one of these things to keep my truck from destroying itself is a whole other subject. Spend the extra money get a better module...

It does work, keeps my 2014 chevy silverado in V8 mode. Side note: after a year of use it sometimes won't sync up with computer and will go into V4 mode. I have to toggle it around with key ignition on before starting to see the blue lights activating the programming. Thinking the metal contacts might be getting dirty

Popped it in my truck no problems.

Works as stated, easy to install, it took seconds to plug in.

Seems to work well only had a week or so but truck responds quickly sounds great all the time

Thanks for your prompt attention for our missing order… it was successfully delivered and is working fine!

Keep it cranked

This produce was delivered very fast, and did exactly as it was described Thank You

Doesn’t work. Truck still goes to 4 cylinder mode

My Husband bought this for my Son’s truck, which is an 2008 GMC and my son says the engine sounds much better.