The 2012+ have an "oil cooler" from the factory. I am guessing that in your location an aftermarket one will be a good idea.
Searching can be easier if you use this on google: Site:the370z.com oil cooler.
best oil coolers ? help
Difference between Stillen oil cooler kits
Z1 Oil Cooler Makes Oil Cooler
These are just a few that I pulled from that google search. There are MANY more for you to check out.
Hope this helps a bit.
*edit* Added DIY links too.
DIY: Stillen 25-row Oil Cooler
DIY: Oil Cooler (scratch built install, lottsa pics).....>.