So I first went to the Mach area and it was all but dead (3 posts) and I know people who would know the answer frequent on here. I have seen that they have different gauge clusters for a manual and auto but other than the front is there any internal differences? From what I can see the redlines are slightly different as the manual was around 6500 and the auto was near or 7K. other than this anything different and what do you guys think about putting 1 of these in a GT?