Z17 ceramic pads offer superior street brake performance for spirited drivers. Power Stop ceramic pads offer quiet, low dust, vibration free operation while maintaining outstanding pads bite at high termperatures. Z17 pads are 100% non-ferrous to eliminate annoying noise from metal to metal contact between the rotor and pad. The pads are easy on the rotor, and built to OEM specifications, slotted, chamfered and shimmed.