Quote:
Originally Posted by pal
If you ran with stock pads and stability control, the material has likely broken down a bit (chunked) and cracked. This will normally give you the grinding noise later, likely exacerbated with drilled rotors. It’s not M2 or BMW specific. If you take the pads off, you will likely see physical evidence of this.
|
Ive never known any stock bmw that didnt require a change of pads for track duty.