Exhaust question?

Hey I'm new here but thought I would add to this discussion. I had a different problem. I have a 318 ci in a B body and wanted to have dual exhaust. I found a pair of HiPo 340 exhaust manifolds. TTI makes a bolt on kit for these manifolds (I got 2.5" ones). I had to change the oil filter to the 90 degree rotated one and from the mufflers back, I got TTI's B body exhaust pipe kit. You want believe how easy this TTI stuff bolts together and every thing fits perfect. It is expensive, but looks and works great.
Now my only problem is that I am taking my car back to original and taking off all the extras I've added.