Originally Posted by cooltoy

If you have aftermarkets wheels, there are plenty of aftermarket lug nuts.

Muteki, Amuse, Project Kicks, Rays, Volks just to name a hand full. So really any aftermarket lug nut will work as long as it is the right thread. Do a search in the the Parts for sale (Private Classifieds) section. At lest you'll know those fit the Z.

Lug Nuts Picture Thread

Lug nut suggestions