turbo exhaust size

[nine9rs]

soon enough i am custom turboing my rs, with either t3/t4 or a16g. Ill be running like 5-7lbs of boost. should i go with a 3 inch exhaust or a 2.5?

 

[RSTsoon]

3

 

[nine9rs]

what are the pluses and minuses of 2.5 and 3?

 

[RSTsoon]

Everyones told me to get 3 if your thinking of getting a turbo / have one, 2.5 will too restrictive id think.

 

[InfamousEclipse]

I allready have a 2.5 I wasn't positive back when I got my exhaust I'd turbo so, get 3inch. I plan to upgrade, in the long future. 2.5 is good enough for my goal, for now.

 

[nine9rs]

infamous have you noticed any problems running the 2.5?