🔴 Enhance Performance with Range Technology RA003R Active Fuel Management Disabler (Red) Review

Always be suspicious of plug-in fixes. It was easy enough to experiment with, so I gave it a try. Of course, I needed to improve the handling of my 2007 Suburban. Before that I had a 2001 Suburban with "oldtech" 5.3. It got 18+ mpg on the freeway at an average speed of 75 mph. This "new tech" 5.3 with all the AFM, alternator shutdown, etc. gets 16+ under the same conditions, along with various crazy shift patterns when driving around town or in street situations that require upshifting and…

Purchased for my 2017 GMC Sierra Elevation. I've had this hooked up to my machine for a month. For the first week or so I turned it off every time I got out of the car because I read it could drain the battery. Now I just leave it on. To be honest I think for those claiming that it killed their battery while sitting it was probably just a coincidence. So far I have no complaints. He does what he has to. Allows your V8 to work like a V8. The only downside is that my gas mileage is down 3 or 4…

I am very disappointed to have to write this review. I had high hopes for all the positive reviews that were written. I connected the product to the OBD2 port, waited a few minutes, started the car, the check engine light came on immediately. My Suburban is 9 years old, I am the original owner and have driven less than 100,000 miles and I have never had a check engine light for some reason. I decided to call Range Technology support and ask them about the device and their recommendations. I…