Quote:
Originally Posted by GregW / Oregon
And Porsche is mistaken? Use common sense. I just replaced the original brakes on my F82 at 51k miles. Looking at one brake, the swept area of a rotor is in approximately 115 sq in x 2 sides = 230 sq in. The area of a brake pad is about 10 sq in x 2 = 20 sq in. My rotors were worn down about .09", the pads about .28". So the volume of material shed was about 21 cu in from the rotors and 6 cu in from the pads. So, where do you think most of the brake dust comes from? If you have contradictory information post your source.
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No, I'll take your word for it.