I have the mk7 GTi PP brakes on a mk7.... they really are up to the job and a notable improvement over the regular GTi.
I also have Porsche Big reds on a lightweight Porsche, they are almost too good for the road and you run the risk of someone hitting you up the rear in an emergency!
Unless you are using it on track, I wouldn't bother with the Big reds, unless you must have a Porsche badge on your VW? :)