I'm done baselining my new 2009 G37S coupe, and I'm now looking at that stock exhaust...

I read somewhere that the G37S has a larger diameter exhaust than the G37 and so I'm wondering how that affects my plans, since most upgraded parts I see online are made for G37.

What are the exact differences in the exhaust system between G37S and G37?

 

Literally none. Exactly the same.

 

That settles it nice and easy - thanks!

 

the 2015+ headers were redesigned. But to run it in older VHR, one of the stud has to be moved.

 

correct, I think he's referring to catback.

 

dam, that's what i get for not paying attention to detail. Sorry