This is our own spoiler that we make ourselves. There are only 4 out there as of right now. 3 of them are on our Limited Edition LS9 cars and one of our customers has one here in Phoenix. It bolts on the same as the factory spoiler but will not fit a convertible. If you are interested in one please contact me at the shop.
Rob
Feslerbuilt
480-748-2000
rob@feslerbuilt.com