Supercharger for 96-98 Mustang GT

I doubt it will work on a '99-up Mustang. Other than the fact that the ports for the PI heads are mismatched to the earlier style intake, the '99-up Mustangs are based on a return-less fuel system, where the '96-'98 models are not. As such I doubt the computer tune, required fuel pump, etc would be compatible with the newer system. I mean…it could probably be adapted to work, but you’ll likely be close to the cost of a brand new system by the time you get all of the right components in place.