I purchased the "spoiler" from Elk Grove Nissan. They had the part on the shelf. Part number is J6030-Z32ZW. It came in a Nissan box from a Nissan dealer with a Nissan Part number. And I was told from another TT owner that this was made for and approved by Nissan, thus they put their own part number on it and it was sold at a dealer.
Most people on this forum are pretty helpful, but most are equally as egear to critize any and everyone.