I too will be looking for a new exhaust system in the near future. One I get my four wheel disc set up installed. I'd like to go with a tranverse muffler as well but people claim you loose considerable amount of overall performance etc.

I currently have 2-1/2" pipe front to back w/LBMs, H-pipe, two 40 series flowmasters and "f" pipe splitters. Mine was done almost 9 years ago now when I lived in CA and cost me $550 and has held up flawlessly going on it's 9th year now...