"Nissan Motorsports" part - made from the factory mold - I should know, since I was the one who picked it up from Nissan & delivered it to Greg. The info they relayed to me was exactly as Greg stated in his ad. I trust the Nissan guys we do business with, so I never questioned the true lineage. Plus, after I saw how amazing it looked on Carlo's Z (founder of Z Haven here in Sacramento), I knew it was the best replacement I'd ever seen...regardless of where it came from. It's good to know now, but it wouldn't have had any influence on my opinion at the time...having seen the finished product installed :-)
