Hey guys I'm not well versed in 350Zs and I was just wondering, if you were to straight pipe the exhaust (no mufflers, cats, anything) what would the best diameter be?
My friend just bought an 05, its essentially stock, its a 6MT with a cai and he wants to straight pipe it. he said 3.5" and I told him he's crazy, he's going to lose power doing that. Maybe 2.5-2.75?
Any advice would be great.

Thanks in advance,
Brian

 

I have a high compression 2 liter engine in my Celica and it's well known that 2.5" exhaust is best all around for that specific engine. 2.5" on the VQ35 is choking it. I believe stock exhaust is 2.75".

Edit: Is he going single or dual straight pipes? I was assuming he was going to have a single straight pipe.

 

Your friend apparently knows nothing about exhaust system design.
But,he knows plenty about rice.You are right,you will indeed lose power.
Plus it will be loud as hell!

 

not sure the diameter but this is what it would sound like

http://www.youtube.com/watch?v=rh3Se...ature=youtu.be

 

^ Both of those sound awful!

 

just broke my speakers

 

RIP to any earphone users

 

*Puts in earbuds* I heard a mosquito-esque engine... then two POPS. That shat just blew my speakers. Thanks guys! xD

 

Something told me to take off my headphones, damn ricer exhausts

 

I love how both videos have people laughing in the background...epic....