Blitzm
Member
They all develop small cracks. My GR Yaris Rallye has 2-piece slotted rotors and they also started to develop small cracks, nothing biggy.its the actual rotors from the GTR. they literally parts binned it. so ive lived with those exact rotors on since summer of 2008. never had a problem with them but yes under heat cycle they are prone to small 2-3mm cracks around the holes over time.