[TweakedGM]

that me get this straight you want to get bigger than 3"? on my 91 I had stock exhaust at the end of the y pipe in had 3" then to the muffer then duel out each pipe was 2 1/4 inside. I would get what flowmaster or gibson has. If you get to big of pipes you are at a loss then to small of pipes you are at a loss again.