Good info, I'll look into it and see what they have.
Well, now here are some headers for a 3.6, different primary lengths and collectors.
The headers in the first picture are being replaced by the headers in the second. I can't really say how long the primaries really are because the collectors are much further aft in the first set. I do not know what diameter they are in either case.
The craftsmanship in the first set is very nice.
http://forums.pelicanparts.com/porsche-911-technical-forum/930334-finishing-pelican-parts-911-rsr-tribute-project.html