How you guys liking the Ferodo DS3.12?

[EGbeater]

Originally Posted by D_SheerDrivingPleasure

@EGbeater How deep are those ridges on your rotors? Can you feel them when your run a finger over the rotor?

Yes, can definitely feel the waviness. I'd guess the height variation is around 0.5mm.

To be clear, this did not happen on my F80 M3, nor do I own a 991.2 Porsche GT3 (I wish); this heavily grooved (drilled) rotor outcome was on a friend's car after a recent track day with 3.12s front and rear. The pads had not been recently installed and were fully broken in / bedded.