I have been thinking about buying a tuner for the stang and not sure what one to get, i have a diablo sport trinity in my F150 but diablo doesnt seem to make a nice one for my year (1997) but they make the nice ones for 1998 shocker.. Anyway what tuners are you all using and recommend? I was looking at SCT X4 seems about perfect and can get it for about 300 bucks on amazon.. Also can tuners adjust my speedo? Gears are getting installed in the next week or two. That was one of the main reasons i got a tuner for my F150 wanted the speedo correct with 37" tires Thanks!