Good apparently I am having a problem with my brakes, the matter is like that, the car slows down well and everything but when a little hard stop a sound \ "shhhhhhhhhhhh \" and if the brake is much harder, the classic \ "chillido \" sounds from when the pills are spent and also feels a slight vibration, especially when one stops on the track. These brakes recently rectified the discs and "simple \" view they are not seen with any problem.