Would these be good mods to start with?

[kfcgodsword]

Just joined the Z fam recently, and want to get into some light mods to maximize performance. I have a 2016 Nismo with 7AT (don't kill me pls) and want add some bolt-ons. I'm pretty unexperienced with modding cars, so I just want to make sure the mods I want to get are going to be worthwhile. The main goal here is performance, but have to keep in mind I live in Portland and have to pass DEQ tests every time I renew.

Please let me know if these would be some good places to start:

• Z1 Cold Air Intakes
• Invidia Gemini Exhaust (Not trying to be loud with my exhaust)
• Possibly some headers
• Tune

I've also been eyeballing the the Z1 400hp kit. Like I said, performance is the goal here, just want to be a little quicker and faster(without sounding like a rice rocket), so any recommendations are welcome.