Cat back exhaust options x2

Originally Posted by mikey1600

Hey guys,

picking up my new 370z next week WOOHOOOOO!!

looking at exhaust options, am looking for a relatively cheaper option as delivery to Aus is gunna kill me, have narrowed it down to either F.I/Invidia/Topspeed. Also waiting on some more info to come out about the new ARK system.

So far, I see lots of people talking about the topspeed and getting a y-pipe etc.. is the y-pipe needed with the CBE? thought it was included?

any help appreciated, cheers!