Actually, they are not SD wing from pfyc. It is slp spoiler if that what it calls from clubgp. I brought it at Wood Dash Experts. It also has other spoiler look like Daytona spoiler like Rook's car. It is great but they say need to drill so I have no problem with that.
http://www.wooddashexperts.com/customer/home.php?cat=6550