[Jeff Chambers]

Fuel system and the PCM will be big hurdles. You might be able to fudge a fuel system at the stock HP levels, but when you start getting boost crazy like the 03-04 Cobras seem to instill, you're gonna find yourself upgrading to the Cobra pumps & tank anyways. Don't forget to grab an FPDM off the Cobra too. If you switch the PCM, you'll need the entire wiring harness since the 96 is a DIS system rather than coil-on-plug. 03-04 had different style injectors too so you'll either have to swap the harness, or get the adapters, or change the injectors to the old style.

It can be done, but it's gonna be a project. Physically the motor will drop right it, but the 96GT is gonna fall short particularly in the fuel department if you just start plugging things in.