I have a 04 comp orange mach 1, i have a bbk o/r x pipe, magnapack exhaust, and a jlt intake. I was originally running a SCT xcal3, i didnt feel any power difference at all so i sold it and swapped to a diablo. I read someones thread and it was saying with the same mods as mine, the diablo had it running extremely lean...with the sct my best 1/4 time was a 13.4, just switching to the diablo i got a 13.1...anyone else had any issues with diablo tunes ??