I have to say (and it was a very long time ago) I fitted them when I had stock wishbone mount they fitted with no problems but mine is a 2014 model so maybe they changed something.Bought the Audi RS3 8V brake ducts / deflectors. They are by no means a straight fit and you need to hack away most of the material. I still need to fit them, as I have other priorities.
Partnr : 8V0407811 / 8V0407812
I did notice on my parts supplier that I need a different set of ducts when I replaced the wishbones with the Super Pro ones, but actually it was the same duct and just needed brute force to fit.