I was just curious as to what is a good setup for a twin turbo situation. Headers definetly will be a PITA, but as for the rest I was thinking something like true dual 2.5's, no cat, and maybe a straight-thru muffler. Nothing chambered like flowmaster. I'm also worried about how loud something like this would be. Any comments / suggestions / opinions?

 

Turbo's hate backpressure. Basically - build the biggest exhaust you can. Since the turbos quiet things down, you can ditch mufflers as well.

 

Oh ok, thanks...I ordered the meantioned books about turbos and even an additional one about superchargers and nitrous.