Yes, track time is the plan this coming season...
The supercharged Z is awesome coming out of the curves onto the straights... but wow, do you build speed that needs to be scrubbed fast. The nismo brakes are alright, but I would like a more confidence inspiring setup.

If you upgrade calipers do u also have to upgrade rotors sorry if it's a dumb question I figure it probably is

Yes... you will need to upgrade rotors, calipers, I think lines, and cut the dust cover from the rear brakes. This forum is turning into my 350. Search people goodness. The thread DIRECTLY below this one is about upgrading base brakes to sport.