do you know exactly what needs to be done? Is it the sizing of bolt holes or what? I really haven't an idea what has to be done. hopefully tomorrow I can have time to get under my car, check it out maybe...because I'd really prefer to do it myself, its such a simple task really to put on a header except that I had to get this jdm (must modify) header lol so who knows...thanks for the help though.
Also to the post above, yes i've already tryed asking a local import shop about installation and they flipped out on me about being fined $5k. He didn't understand what header I had or anything though. He just came quick to answer "Are you ASKING me to modify your cat and get fined 5,000!?!?!, I won't do anything we'll have to tear up your header to fit" (in angry voice lol) so I just said forget it and hung up.