Okay so my build is starting to ti together & i was gonna have a Exhaust made & was wondering if i could get some opinions on recommended piping size.

Might be dumb but i was thinking about running a Full 3" exhaust into the twiploop.

Heres the specs on my build
82mm Gsr
ls stroked
ima guess around 12:1 - 12:5 compression
B16 head P&P
3 angle valve job
Ported intake mani
+1mm flat top valves
skunk2 pro2's
hytech tri-y rep header
& prolly gonna run a obx twinloop muffler.

 

IMO if your doing 3" use Vibrant resonators because all motor 3" just about any other way sounds real loud and usually shitty.

 

now would i use this as a actual resonator or as the muffler?

Really i was also asking if a 3inch setup would even be necessary for my setup i dont wanna loose power from it.

 

"everything after the header is a restriction" but also figure temperature, velocity, and scavenging. There's a great write up on exhaust I believe from a NSX forum. I'd post it if I weren't on my phone. 3" should be fine, but it will be loud. Is it a daily?

 

gotchya,
Its gonna be some what of a dd...i really only plan on dding it for a lil while till i get some cash up to buy a daily. so ya it will be a daily for like 2-3 months.

 

My friend has a built gsr with a 3 inch thermal exhaust It's loud but his shit rides I'm pretty sure he's in the 12's all motor.

 

word sounds good Thats around where i was shootin as far as track times

so either vibrant or thermal it is.

 

3" no question. If you purchase the right components for the exhaust it wont sound "shitty".

PM me if you need help.