Yeah, that I'm not sure! Luckily I never paid anything directly to the seller as BaT handles all the money, so they refunded my credit card and I was free & clear.
Rays/Nissan doesn't share the paint code, but after some searching online, this is the stuff that's a perfect match. It's an enamel so it should be very durable, and has the metallic flake in it. Not bad for a $2.99 bottle! Available at any hobby shop (I got mine at Fleet Farm). I used one...
Swift is actually fairly new in the scheme of things. I put them on my Evo IX and hated them. More JDM hype than anything else, plus they're linear (not progressive) for the Z. Eibach or H&R is a better choice.
The question I answered "no" to was specifically regarding the stock Nismo struts. The Nismo trim and aftermarket Nismo parts are completely different things.
The factory Nissan Nismo trim shocks/struts with no other changes? I'm not talking about the coilovers. The Nismo trim has a nearly identical ride height as the Sport & Performance trims.
Better traction.
It all depends on suspension setup, sidewall stiffness, etc. I actually made a post on this exact thing earlier today...let me go find it.
*EDIT*
https://www.nissanzclub.com/forum/threads/best-tire-pressure-for-sport-trim-on-street-stock-tires-tyre-psi.11119/#post-197557