Hi Steve,

yes Cayenne calipers fit perfectly to the Touareg, they are the same, except
the Porsche brakes have the nice red finish.

I'am also thinking of changing them, we already put them onto mine at a Porsche
mech to see if they fit.

Only thing which confuses me is that there is a official VW paper which says, you
are loosing your warranty if you use painted calipers, red or whatever but not the
original black. This is because they can't garantee the full brake functionality in extreme
conditions due to the different heat distribution whith other paint as their original
black one.
And the paper even states the order to dealers, that they have to change the calipers
if they are not original and not giving out the car before this change !!

So, dicide by yourself

Mine is silver with 22" wheels and the red Cayenne calipers look f***ing good,
so I maybe go for them

regards
Gunther