So I just ordered the EVO-R Nismo High wing from the Z store...I just want to share some of my experience so far.
Right out of the package I found a deep scratch in the rear of the wing.
I don't think it can be buffed out.
Then near the sharp edges of the spoiler where it bends downwards, the carbon fiber weave is completely exposed/cracked. If you run your finger along that edge you'll instantly realize that it's rough and not smooth like the rest of the spoiler.
Right now The Z store is happily to work with me for an exchange but I have to wait for 3-4 weeks. Hopefully the next one will be better. Keep you guys updated.