Originally Posted by dex37
The GTS brakes are the same as the Brembo GT. Only the rotors are different. BMW makes their own rotors. If you see the Brembo GT and the GTS rotors next to each other, you will know why. Those on the GTS are much better made.
These are Brembo GT calipers and are not painted.
Why are the OEM rotors better?
They don't seem to flow as well on the back side from the pics I've seen. They don't have the little bolts that are suppose to help with rotor knock back either.
This is something I've wondered about but haven't seen any firm answers too.