Advance half spoiler. There are others that make this style as well. I think they fit odd where they meet the upper bumper cover the one pictured is modified I'm sure to meet better. The car below is the only one that I have seen that seems to fit nice.
Advance half spoiler?...but the lower part is less prominent... more rounded... more OEM like... and the owner says in the thread, that he was looking to get the advance part but ended with this lower bumper as e bought it in yahoo auctions in japan... and this part will go over the OEM lower bumper... does the advance part goes this way?