Have not seen those before until now.
I have these and know many others who have ordered them and liked them. Only downside is there are 2 bumps which these do not hide which is why there is a backplate on them.
Motorsport! Big "Z" Rear Emblem, Black with Silver Carbon Fiber, 09-14 370Z - The Z Store! Nissan-Datsun 240Z-260Z-280Z-280ZX-300ZX(Z31/Z32)-350Z-370Z Parts