Range Technology RA003R AFM/DFM Disabler-Red

2020 6.2 Sierra. It shut of my AFM/Auto start. BUT the truck didnt know when to shift at those times where it usually drop cylinders. You can feel the tranny wanting to shift but it wont unless you give it more gas. After two weeks being installed the auto shut off came back on. The truck runs better with out it 100%. Real truck wont take it back since it falls under their "instillation policy". Considering this simply plugs into your OB2 there is no wear on it. Its not like installing a exhaust or bedcover. So now I am out $220. Never purchasing anything from this site again. Very disappointed in the product and the customer service.

I cannot say enough about Real Truck, they were quick to resolve an issue that I had an immediately sent out another replacement before receiving their return, I highly recommend this company for their prompt response and will continue to do business with them

Plug it in, give it 10 seconds and drive. Say bye to the annoying V4 and AFM, say bye to the exhaust squeak. Don't overthink it. $250 bucks to make your truck feel like a truck. On command power, shifts smoother, must have for the AFM year GM's.

When I first bought my Silverado I didn't know about the fuel management system. I bought mine used and noticed during my test drive it seemed a little wimpy. I saw this device on the website and noticed the difference the first time I used it. Worth the purchase, unless you want that extra fuel economy...boring :)

Only works part time. Do you have a better one Not happy