i just got a 3 inch exhaust from a co-honda-techer lol. well anyways, when the exhuast came here, i measured it and its 2 7/8. really close to inch. i don think that 1/8 will make a difference in my performance, but i wanna get more opinions. if it helps, i will be runinng a 57 trim t3/t4 at 7-10 psi on a stock gsr

 

why only 10 psi?

 

It won't make that much of a different, If you were pushing higher HP numbers, then it would be a different story.

 

why not 10psi. its a stock gsr. paypal me about 3 gs so i can buy another motor, then ill boost more and also, what kind of hp number would make the difference? in about a year once im making more money i plan to od internals and runn higher horse power.maybe 400-450 if possible at the time. when will 2 7/8 be a problem??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by playahwitgame &raquo;</TD></TR><TR><TD CLASS="quote">why not 10psi. its a stock gsr. paypal me about 3 gs so i can buy another motor, then ill boost more and also, what kind of hp number would make the difference? in about a year once im making more money i plan to od internals and runn higher horse power.maybe 400-450 if possible at the time. when will 2 7/8 be a problem??</TD></TR></TABLE>

Nope, I would'nt worry about it. I'm running a 3" turbo back on my lsvtec and I'm expecting about 400+Hp. So don't worry, if you get into the 500+hp range, then think about a 4" turbo back exhaust.

 

dont worry