I would actually suggest looking at the BERK Tech cat-back exhaust. The tips have an OEM NISMO look to them, but a beautiful VQ exhaust tone gets emitted out the back. This system combined with a pair of GTM resonated test pipes has been the best sounding combination I have heard in person.
Not sure if thats in the budget, but that would be the exhaust I would go with on my Z
.
Thanks,
Alex Goodwin
AlexG@motionlabtuning.com