I'm thinking of adding a tuner to my 96 gt any suggestions? its got most of the bult ons, intake, exhaust, throttle body, and 373's. Anyone got any ideas?

 

ima say either SCT tuner or Diablo sport. those are pretty good ones. and as far as more bolt on's. try - throttle body spacer, X-pipe on exhaust, MSD Ignition system. UnderDrive pulleys.
these are all nice to have. i would say headers, but they are expensive, and they really dont do anything for the mustang horsepower.( or torque)

 

SCT