pipe size from collector to tail pipe.

Any exhaust shop in your area,if so have them bent up a nice 3" system for ya'..i had a local shop make me a 3" collectors back to the mufflers(with dumps) H-pipe,and stainless magna-flows and band clamps into 2 1/2 tailpipes all aluminized pipes everything bent just the way I wanted it..for $700.00