I guess reading is fundamental. If you are keeping it NA, I would focus on cooling upgrades. CSF Radiator, 34 Row Oil Cooler, and maybe a differential cooler. I can't really relate because I would spend money on upgrades that support a turbo setup (like the ones I mentioned, lol).
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 2007 350Z NISMO #0618: Zerolift | UPREV | F.I. | Greddy | Competition Clutch | Injector Dynamics | Aeromotive | Pioneer | JL
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