Hey I emailed a guy about getting some Mac Longtubes for my 98 cobra. I also asked him about the prochamber that Mac makes and he says that he sells the prochamber BUT he says Mac does not make a prochamber H pipe for the 96-98 cobras because ford placed the transmission crossmember right where the prochamber would be located so he says they will not work. Well I could swear I've seen some 96-98 cobra guys in here running the MAC longtubes w/ the prochamber H pipe. SO please let me knw if your running this setup. The guy says he can get me a regular H pipe tho...but $155 sounded a little high to me and that's plus shipping. I think the BBK is like $139 or so....