NEW RANGE TECHNOLOGY AFM-DFM DISABLER,RED,COMPATIBLE WITH V6 & V8 GM MOTORS

2013 Silverado 5.3L. I had always noticed a slight stutter in the engine. The check engine light was intermittent. It was consuming oil. And recently, in the mountains, it wasn't shifting smoothly and was lagging. Did some research. All those issues were common to the AFM. I took a chance and got this. Just plug and play. So easy. Immediate smoothing of the engine and better power. In a couple days the check engine light went off and stayed off. The other day, hubby took it off, and said the truck ran so bad he put it right back on. Now he sees it too. He said he didn't see much difference, but he does now that he drove it with it running good. Absolutely recommend.

Awesome results happen right away!

I have a 2013 Silverado with the 5.3. It has that fuel management system where it cuts off combustion to cylinders when you're in cruising gear at cruising speed.. over time that system will fail. I bought this to bypass that feature. Plugged it into my truck June of 2024 and I have not had a problem since. my system had not failed yet. My check engine light would come on periodically so I would gun the motor up and down the freeway and I saw that problem but it was temporary. Then i bought the Ranger. The Ranger solved it for me permanently AS LONG AS IT IS PLUGGED IN to the vehicle. Fantastic investment

I plugged it in and noticed the difference immediately. Truck shifts better, and I don't get that burping sound from the engine. More power and smoother. Gas mileage went down maybe about 1 mile per gallon. Thoroughly satisfied.

WOW! WORKS GREAT! Tahoe 2018... A very smart chip in this. At idle...now very very smooth. No hesitation. V8 All the time. 3 MPG Better gas mileage! I had the cheaper BLUE LED one at $89...that was ok...not as smart...and that one failed in 6 months (made in china). That caused the computer system to go nuts! Gauges all over the place, and not starting. Unplugged that POS, all was normal original 8/4...but I ordered this RED LED product next day. More $$, SO WHAT? At just under $200.. Super product. Much better...like having a new engine!😉🎯❣❣❣

At this time unit is doing as described reason for no 5 star I've only had it a couple days and the price is a little expensive.

I have done multiple DOD deletes and if you cannot afford to do one immediately then I recommend buying this! (IT WILL NOT FIX DAMAGE ALREADY DONE!) it will help prevent what will eventually happen down the line. So if you haven’t gotten it yet, get it! Do not buy a different brand they’ll cause electrical issues and other goofy stuff, spend the money on this one. Super easy to install, plug and play no messing around. It’s super cheap insurance to have. Doesn’t “tune” or “add power” just locks in the AFM to v8 mode or v6 mode (depending on application)so it’s not shutting off cylinders. It’s a great cheap product to hold off the inevitable a little longer.

Worked great on my 2018 Yukon. Totally changed the way the car accelerated and shifted without the AFM system constantly kicking in. I did notice a slight decrease in gas mileage, but that was to be expected. It did not appear to drain the battery after being connected to the OBD port for 7 days without the vehicle being driven.