I have a 94 Cobra and the differences between the GT and the Cobra are:
17"Cobra rims(whoopie)
Cobra intake upper/lower
Cobra cam(whoopie)
13"front rotors and 2 piston calipers(great freaking brakes)
Astectical Cobra features(like steering wheel)
Sucky Computer, pulls timing out during shift(do not replace with stock GT of same year, replace with FOX body computer)
70mm MAF, 65mm T/B
Mach 460 not standard equipment
Rear spoiler different from GT and V6
HP rating 245@5500rpm
TQ rating302@6500rpm(the two rpm ranges could be reversed, not sure)
3.08 gear
Stock 1/4mile time of 14.8-15-2(depending on driver)
I was of the opinion that they weighed in at over 3500lbs, but I may or may not be wrong.
Hope this helps you, and welcome to the Cobra family!!
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1989 GT- Vortech blown 306, Anderson 3" power pipe, Vortech S-Trim 14# boost, MSD-6BTM, black wrinkle finish Cobra valve covers(woohoo), world class T-5, 3.55 gears, custom sub-frame connectors, Cobra grille insert and rear valance, Saleen "whale" wing, 4 wheel disc conversion, 11.1@124
1994 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph