Product Description: VAUXHALL ASTRA VXR NURBURGRING 2.0 TURBO FRONT BRAKE DISCS KINETIXKinetixSports Performance slotted brake discs: The main advantages of slotted and grooved discs are that brake fade is significantly reduced. The science behind this is that the grooves and slots deglaze the brake pad and evacuate the gases that accumulate between the disc and the pad during braking. The additional slots more effectively dissipate heat, thus greatly reducing the risk of disc deformation, vibration, or cracking.