Ok, so just to clarify (and hopefully not muddy the waters more)–if I am swapping in a motor from a '03 350z from Michigan(for example) into my California 260z, as long as I have all the emissions equipment from the 350z it should be ok. I'll check into swaps in more detail with the refs as the time gets closer, but just wanted to see if anyone knew offhand. Also, sorry for asking about all these swaps in the L6 forum, I found this thread searching around and didn't realize it was in this section. But at least I used the search function!