I was tired of using manual M5 to disable V4 mode every time I got in my truck. This Range devise does a excellent job of disabling V4 mode. I don't care about mileage because if I did I wouldn't have bought such a large vehicle but I have not noticed any difference so far because the truck has a six speed transmission. I could feel the V4 mode going in and out all the time and the vibration that happens because of it. This is a great product and I got for a great price on Auto Anything.
Trinty T-1000 Review
Setup was fairly easy. CD video was not up to date with Website. But other than that 45 min install with 91 Tune. Change rev limit and fans kick on quicker which keeps car running much cooler. 200-208. Came with 91 Per. & 93 Per. Lots of custom gauge layouts which was great including shift light. Overall great product for monitoring car and future performance upgrades. Revs much quicker and I do feel hp gain.