Questions about OEM Nismo Exhaust

Spooler

Not a big difference. I am not sure if you will need additional hangers since I have a Nismo. No real difference between early and late nismo exhaust. They both have the H pipe. You will not need a tune. They exhaust has reusable metal gaskets. You may need them if they are not on the used exhaust you buy.

Quicksilvers

There will not be a big difference at all as far as sound go’s and it will be a waste of money if anything. As far as I know you will not need any additional exhaust hangers. As far as the metal exhaust gaskets they could be reused but I would never risk a possible exhaust leak and have to do it twice. I would always install new metal exhaust gaskets every time I take my exhaust apart. For just installing bolt on’s you do not “need” a tune as your engine PCM will quickly compensate and adjust for just installing exhaust. In my opinion I would look into installing a different brand exhaust if you are looking for a deeper more aggressive exhaust note from your 370Z. I would try to hear different set ups on other people’s 370Z in person and/or try to find 370Z exhaust clips you can hear to help you decide what exhaust set up you like.