Ok, I'm debating whether or not to buy a tuner/programmer. The only reason I want one is because my xlt did not come with the LCD info center in the gauge cluster. I want to be able to monitor all of the parameters that the LCD display has, trans temp, ect, egt, etc, and be able to monitor my regens and soot levels. I don't really want to use any of the performance tunes just yet bc I want to keep my warranty until it runs out. I've been looking at the edge CTS, had one on my 150 and liked it, but I wanted to know if anyone had any suggestions? Also, will it void any part of the warranty if I just hook the programmer up for monitoring purposes and not change any of the settings or install tunes?