with my mods in sig and in the future a big16g ported and clipped
with some more mods like intake and fuel do you think I should go with the RNR 3" turbo back or 2.5"? I know you guys will probably say 2.5" will be fine, but I would like to know if 3" inch would be better, or if its overkill and wouldnt make a difference with the power that setup would be making.
thanks
by the way in my sig it says 2.5" catback but that came with the car and i would sell it and go with 3" if it would be better

If you're definately gonna get a new exhaust, I'd say go 3in. Just in case you decide to go for a bigger setup, you wont have to change it again. It doesn't really cost that much more than 2.5in piping.

forget it im gettin a t3/t4 or 20G so im goin 3"

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