if you don't drive your Z like you stole it, there's not much you need to change.
I have mine since 2011, MT, have 190000km on it and it's running strong.
I don't gun it on every traffic light just to let you know.
I bought the base, cos I know I will put in wheels and BBK and aftermarket audio.
Thus it depends on how are you gong to drive your Z, track or DD, or if you are going to mod it like there's no tomorrow, that will help you to decide Sports vs Base.
Regarding the CSC, I upgrade it to that heavy duty one while changing the clutch, just a peace of mind.
CAD$0.02
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