INFINITI or Maxima rear lip Spoiler for I35?

Can anyone comment on if I can find a rear lip spoiler for a 2002 I35? It is almost the same car as a maxima so possibly one for a maxima would fit.

I really like the look of the lip spoilers, particularly on the audi A4. I know there is nothing OEM from infiniti or nissan, but if anyone knows a place where I could find an aftermarket or custom one that would be great. Also if you know of anyone that has done this and have a pic that would help also

thanks in advance

Nick