a 50th AE has a turbocharger. There are no headers which support this application.
If its an 1984 N/A, then you can get headers from MSA. I bought a set about two years ago. While they are nice looking, the quality was a little on the crappy side. I wish there was a better alternative, but there really isn't that I've found.
----------
1985 300ZX n/a
See my Z project