Originally Posted by
BCS_ZHP
For the ceramic pads, they are hard and don't bite into the blank rotors as well as the OE pads. To keep the relatively same braking effect, when you swap to ceramic pads also swap to slotted/drilled rotors. The extra edges of the rotors help the harder ceramic pads bite, the braking effort will be the same with the same results. The source, our own Ray at BrakeYourself.com.
Perhaps for a track/HPDE/autocross car, but overkill for a street-driven car, IMHO. In my purely street application, my brakes are 100% as effective as with the dirtier, bite-ier factory pads, with the only difference being a slight amount of additional pedal pressure required, and they don't bite too well on the first stop of a cold morning, then immediately fine from there. But then we don't really have many cold mornings here in Phoenix.
'21 M2 Competition
'08 Z4 M Coupé
'19 Golf R