For the MK7 one of the most desirable retrofits is the Clubsport rear spoiler. Trouble is you needed a Golf rear hatch to fit. Not so for the MK8, VW has made this retrofit simple, you just replace the whole piece with the Clubsport item which is also found on the R Performance.
They are coloured to the vehicle. I only so far have matched Pure White, Black and Lapiz Blue. I recommend you get Black if your car is any other colour. I am working on the other colours.
Choose the colour from the options.
Special order currently. If they get popular I'll have some ready to go.