Don't drive it running straight off the headers. I had mine off from the exhaust manifold back, and it was loud as hell!! It just sat in my garage for a month waiting for my parts. You would be imbarrased to drive it like that. Don't take off the old parts 'til you get the new stuff.
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T-Bones '96GT
'96 GT 5-speed
Roush Cold Air Kit w/ K&N, 80MM Mass Air, Mac Cat-Back, Mac Pro Chamber H-Pipe, FMS 3.73's, FMS 70MM TB, March U/D Pulleys, Steeda Tri-Ax.