Chad, If you go with the TTI now it will save you a bunch of hassle later. The cheap header's go around the streering linkage. It's not that big a deal but if the budget allow's get the TTI's now and be done with it. The driver side is two piece and does not got through the streering linkage. I installed mine in 2 hours on a hoist. (A MUST) Now that the header's are in let's build the exhaust. Remember if you change header's later the exhaust will not line up, so think about this now.
I have a Dr Gas X Pipe kit. 3" to 2 1/2. Then straight to the muff's and then TTI tail's. This kit can be put in with out bending one pipe. I have the 3/4 spring relocate kit and it fit's fine. I also have the TTI exhaust tips. Your car might not have the slots for the tips.
My 340 was faster with this exhaust than it was with open header's. I also ran my 11.11 with this exhaust hooked up. It was designed by Scott Brown at Straightline Performance. This set up works! Period!! It's not cheap but nothing worth while is. I got all my TTI stuff from John Cambridge. Don't even bother going anywhere else. You won't find a better deal.
Keep me posted on what you want to do. I've been there and done that so I can help you through it. I'll help you get the most out of what you want to do.
Brett