what would benefit me more on exhaust 2inch maybe?

 

Correct me if i am wrong but stock is 2 1/4, so 2 would be going smaller.

 

2.25" for NA is what I'd go for. Don't go larger unless you're planning on going FI, in that case 2.5-3"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc2acgsr99 &raquo;</TD></TR><TR><TD CLASS="quote">Correct me if i am wrong but stock is 2 1/4, so 2 would be going smaller.</TD></TR></TABLE>No, stock for non-ITR is 1.93", but stock for ITR is 2.25.

 

any catback systems usually come in 60mm 2.36" which is plenty for most NA setups

 

Whats your setup and what are you going for???

 

no the factory piping is like way small lol. my buddies tell me its cute so i know its not 2.25

 

2.25-2.36" is fine for just i/h/e to a mild n/a setup. 2.5" would be more ideal if youre looking for more than ~180whp+ n/a. 3" all the way for turbo.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20integra95 &raquo;</TD></TR><TR><TD CLASS="quote">no the factory piping is like way small lol. my buddies tell me its cute so i know its not 2.25
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thats cuz you don't have an itr...

 

would 3" be the only way to go for turbo if i was only running 7 or 8 psi on my daily?

 

In general, you'd want around that diameter yeah for a force induced car.

 

im pushing 6psi through a daily driven JRSC GSR, I was planning on 2.5", but should I reconsider for 3'??

 

when talking turbos don't go by psi