Have 2 sets of RS3 brake ducts - one brand new, one used (no damage). Both will come with extra set of zip ties. Photos of used set to be uploaded soon.
8V0407811/12
New - SOLD ($55 shipped)
Used - SOLD ($45 shipped)
Might take a bit of hacking/cutting but I think you could do a decent job since the mk6 arms seem to have multiple cutouts for the zipties. May not be as perfectly form fitting but my guess is would still be secure and do the job.