Range Technology RA003B AFM/DFM Disabler-Blue

Before using the product: the auto stop is very annoying, the car has V8 power but under 40mph the power is worse than V6, like you are a lion but meow like a kitten 😂.After using it You will clearly see the difference, the annoying auto stop mode is turned off, your car is back to V8 power, the fuel before and after using the product is no different, the car battery is not drained because I tested and parked the car for a week while still plugged in.In short, you should try it, amazon gives 30 days to return it and I think you will definitely keep it. Note: remember to go to the product website to check the product code that matches your car, leave a message and they will reply within 24 hours (this is how I did it)

Saved my marriage because I don't need a new truck now. My kids grades improved since I can get them to school reliably now. This thing is literally a game changer (we play different games in the truck now).You will have to unplug it if you go on vacation, since it will suck your battery dry.

So far so good. The first picture is the mpg without it. The second one is trip B. I restarted it and the highest it got is 19.6 mpg. I don't drive crazy or nothing, just casual southern living. The price is good, and it functions as described. Truck stays in V8 mode.

bought for 2016 chevy silverado 5.3 literally plug and play no issues worked like was supposed to kept in V8 mode i do recommend unplugging it if your not gonna drive for few days cause it does consume battery very happy with it is alittle costly but better than buying new motor

Received the item in a previously opened box. No documentation. The device was not secure in the "slot" inside the box, but flopping around loose. It appears to be a used device. For almost 200.00 I am very much disappointed.I'm very apprehensive about plugging this thing into my system.Update :I took the chance and plugged the device into my 2017 Chevy Silverado. Thus far it is working as advertised. As a matter of fact, it appears that my gas mileage is actually better than what is was using the stock flex technology V8/V4. Running as a V8 consistently (which is what I want) has worked out better than what I expected, and the issue or "possibility" of the lifters sticking over time with the garbage flex technology is not a concern any longer.So I bumped up to 4 stars. The opened box and no documentation is still an unacceptable problem and I would hope that the seller will address it.

Bought a used 2017 Silverado, I didn’t like the way it was shifting when active fuel management was enabled. Installed the range and keep it in v8 all the time. It shifts much better only lost .5 mpg. Hopefully it will save my lifters also.

The product arrived in perfect condition and was securely packaged. It works as expected, and the delivery time to Germany was very short. I am completely satisfied. Thank you.

Does what it's supposed to do but don't leave it in the plug. It will kill your battery if just left in