Options seem to be :
H&R (front and rear)
Whiteline (only rear?)
Neuspeed (only rear?)
Megan Racing (front and rear)
These are the same bars for the Tiguan, the R32 AWD Golf, Passat/CC AWD, and A3 AWD.
I am tempted to go for the H&R front and rear. The rear bar is easy to change. The front bar requires dropping the front subframe.