True. After re-reading everything, I posted a diagram of the exhaust components. The rear canister is the same for all models. Again, sorry for the confusion on my part.

the nismo rear canister and the regular 370z rear canister are different rob.

the the 2 small pipes leading up to the canister are larger on the nismo. Internally probably different as well as the weld lines are different.

No biggy. =)

The purpose of this thread was for everyone's information... now we know that muffler's are interchangeable regardless of model for anyone that doesn't want to go the full cat-back exhaust route.

I would love for something like the Cobra N+ on my ride but damn it's expensive!

does the sound improved from just adding muffler?

Yes, that thing NISSAN calls an exhaust on the back of our cars a/k/a the "deaf chamber" robs sound like mad. Just pull it off and you will see what the VQ sounds like b/f going into the deaf chamber...it is loud...

Sorry im a noob, but do FI or stillen etc ... Sell just the muffler ? Anyone knows?

No they dont.

Meister makes axle back. I pu my Nismo tommorrow. Stock CATs and no can. I'm told it is pure sex...TBC...

Do you guys know if the NISMO uses the same exhaust manifold(header) as the regular 370z?

exhaust manifolds are same across all 370z's.

Great! Coz my engine light keeps come back and dealership decide to replace the driver side's cat and exhaust manifold. I just want to make sure the dealership doesn't mess up the nismo parts with the regular 370z parts. I don't wanna be half nismo half something else!:D Thanks FL_4Motion!