This is my experience to the tee. You'll probably want to wait until you burn through a few tanks of gas before paying attention to gas mileage. I have developed a little lead foot since I installed mine. I will compare gas mileage when the newness wares off.
It's pretty straight forward to install. It sits between the ECM and the connector -- that's located inside the driver's side wheel well. It disables the autostop as well, so you'd likely just use this device and get rid of the other one.
There's a discussion on this forum...
Two weeks ago ... installed GMC performance exhaust.
Last week ... installed Range DFM disabler (RA007).
Pretty happy with both. Exhaust doesn't center on the cutout in the rear, and stealership can't do anything. So I am going to take it by an exhaust shop tomorrow to see if they can...
So I got the Range disabler yesterday and just put it in this afternoon. It was pretty straight forward. Put the Yukon on the highest suspension setting and turned the steering wheel all the way to the left. It provided just enough clearance for me to get back there without taking the tire...
Thanks! Yeah, I have the air suspension on the Denali, so I will try and put it in service mode (highest setting) to see if I can get it done w/o removing the tire.
Appreciate the help!
A couple questions:
1. Does it disable DFM at very low speeds like at a stop sign? I was reading on an AT4 forum that DFM is enabled at very slow speeds with the RA007 device.
2. Were you able to do the install without removing the tire? This is me just being lazy :)
Just ordered it from...
I actually switched to the Pirelli's at 2,000 miles. I was able to sell the factory tires for a little more than what discount offered me. I have put 19,700 miles on those Pirelli's and they're already down to 5/32. I am going to put the Defenders on in a couple months.
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