I have a 2013 Nismo ...same situation.
Not interested in the spring route, changed mine myself on my G37 and its a pain, its also a pain when you undo them if your going to sell it, plus like mentioned they typically come with a drop which I don't want for the Z nismo.
Interested in the coilover route ....anyone care to give suggestions on some good alternatives that do not drop the car any...and yet make the car feel less like riding a horse...
