Didnt know the edge didnt have CAI tunes in it. Thanks for the info,you saved me from buying a programmer that wouldnt have helped me at all. Sounds like the diablo sport is more along the lines of what im looking for. Thanks again.
Edge is a good one from what everyone around says, but it's tunes don't have cold air intake options. You would have to upgrade to gryphon and custom tunes from php, which isn't a bad thing, just a little more money. The diablosport I went with has cai tunes loaded on it so they were included. If you don't have a cai an edge will do just fine. Pretty sure their performance tune requires premium fuel, whereas the diablosport has 87 octane and premium perf tunes. What they do is change the stock programming a bit to increase power and mpg slightly. With bigger than stock tires you can manually change tire size and mine has a setting to tell the truck when to shift to od that changes depending on tire size and axle ratio. Kind of wordy but let me know if I can help you any more.