i can check for you, i work at autozone and will be back in about 20 minns, i have to go get my hour sheet for next week and while im there i will check.
air filter E-0945 (Mustang 2003 GT)
Product Style: Tapered Conical Air Filter
Base Outside Diameter: 8 in (203 mm)
Height: 8 in (203 mm)
Top Outside Diameter: 3.875 in (98 mm)
air filter E-0940 (Mustang 1995 GT)
Product Style: Tapered Conical Air Filter
Base Outside Diameter: 6.5 in (165 mm)
Height: 7.375 in (187 mm)
Top Outside Diameter: 3 in (76 mm)
If I recall correctly, the only pre-96 Mustang with the same air filter housing as the 96+ is the 95 Cobra R.
hahahhahaha tell me about it, i hate the place, but its such an easy job, all i have to do is look up a part and go get it, and get paid $8.50 an hour to talk about cars with people