I have an 03 Cobra bumper on my 01GT...you will need the fog light bezels, the fog lights, new pigtails to tie the wiring in, the rubber lip that runs along the bottom of the bumper if you don't have it yet, there is a scoop that goes behind the bumper that forces air up to the radiator and I needed a grill delete kit...without it it just didn't look right...looked like a big hole. My friend just installed one and he had to adjust the hood as well as the hood latch to get the hood to fit properly. I have an aftermarket Steeda hood and I didn't require any adjustment with the new bumper