Quote Originally Posted by DuckWingDuck View Post
does that really do anything? I.e. what is the value for money on that?
While I haven't compared the life of a treated rotor to that of an untreated one, the claims are that you'll double the life of the component. We've tested treated rotors on the race cars. So far, they've held up quite well. I've had them on the RS6 for just a few thousand miles, so I really can't say how they'll wear for another 20K+.

But, I don't think it's a waste.

CW