Exhaust question

[Chris Hacker]

I'm upgrading my exhuast, here's what I'm getting. Catco 3" Cat, Z-28 I-pipe 2.75", Dynomax Super Turbo Muffler 3". Now, my question is will I lose power or air flow going from a 3" cat down to the 2.75" I-pipe, then back to the 3" muffler and tail pipes? Should it all be consistent pipe wise? Thanks for the help.

[Harry94]

From what I've herd on the board 3" exhaust systems are overkill on 3.4's. I would think that setup would be just fine . My exhaust dose the same thing. I think the only thing that will make my exhaust flow better is a set of headers.