86RX-7LOVER

2 1/4 or 2 1/2

hkp

iTrader: (2)

depends how much crack you're trying to inhale in one hit? no really, what are you making, that was a really open question.

86RX-7LOVER

what do u mean

hkp

iTrader: (2)

what r u making, exhaust, intercooler piping, rollcage, custom intake manifold, pipe to beat somebody with, a water bong, a potato gun, your kitchen faucet, or maybe even a *****.

86RX-7LOVER

lol for a non turbo fc the piping for the exhaust

hkp

iTrader: (2)

to be honest i had both on an 88 gxl and i really couldnt tell the difference. if im correct, the free'r flowwing exhaust loses low end torque(which we dont have anyways), but you would have to run like 2.5 with no cat and no muffler to be free flowing enough for that. im by far not an expert but i really dont think your going to feel it in your pants and thats really the only thing that matters. unless your running p-port and a stand alone, then dont listen to a word i said.

crazyasu

LOL..HAHahaha....don't go any bigger than 2-1/4"

vipers

iTrader: (8)

2.5" is a good size

My5ABaby

iTrader: (7)

For what, the *****? Personal experience?

Alex Rodriguez

iTrader: (137)

2.5" is a good size anything above that with a stock engine will start loseing power....do you have anything else done to engine

My5ABaby

iTrader: (7)

+1. I've heard 2.5" for pretty much any N/A. Racing Beat is 2.5" and I figure they know far more than I do.