yep, the 94-96 GP's had the two rib, smooth style B4U, as the 91-93 has the five ribs, and a bit more boxy. The rear bumper and side panels for TGPs and 91-93 are the same. The front bumper however is different, becase the TGP has the built in foglights by the headlamps, as the 91-93 B4U has the squared lamps. The TGP front bumper is basically like a cross between 91-93 B4U and the 88-90 bumpers  :)