GT30R 3" or 3,5" Exhaust

[fmb1987]

Hey guys!

Next month I'm willing to buy a GT30R, and I'm not sure yet which one I'm gonna buy.

Some people say 3"would be better but some say 3,5 "would be better.

What do you advise?

Remember:

I'm from Brazil, so I'm running on methanol

1000cc precision

GT30R

DSM link

2.1L

HKS manifold

K&N

 

[dan2288]

3in would be more than enough .

 

[snowborder714]

Agree with 3" being enough. Most people won't flow enough to have the 3" be restrictive, unless you're running huge hp numbers. I've read about very few cases of people going to a 3.5" or 4" exhaust.

 

[TC Mueller]

One of my buddys has a 600whp wrx and hes running a gt40 on 3". Im sure 3" will be fine.