I ordered a Powerlab single turbo setup for my G35. I am completely stock right now. I am going to be running around 5 psi of boost on this setup with 440 injectors tuned on Osiris. The downpipe that comes with the kit is 3" which is a single out. I have the following questions.


1. If running a single exhaust with this kit would 3" piping be adequate or should I go 3.5" for this setup?
2. What would be the benefits of running a dual exhuast be?
3. What size piping should I run if I did run dual exhaust?

Your inputs would be greatly appreciated and helpful in making my decision.