Turbo Groove automotive brake discs have a widened, arcuate slit that increases the flow of cool air, lowering the temperature of the brake pads and disc, while draining dust, dirt and hot gases better than a straight line, which can rust and become ineffective. Drilled holes remove surface gases when braking from high speed, while not weakening the structure of the disc as in through drilling. TECHNICAL DATA Type: Drilled and Slotted Full / Ventilated: Ventilated Number of holes: 5 Diameter (mm): 269 Height (mm): 46 Thickness (mm): 20 Minimum thickness (mm): 18 Axle application: Back APPLICATION Brand Model Engine Value Power (KM) Year AUDI 100 AVANT QUATTRO 1.8 88-90 AUDI 100 AVANT QUATTRO 2.2 84-87 AUDI 100 AVANT QUATTRO 2.2 88-90 AUDI 100 AVANT QUATTRO 2.2 TURBO 86-90 AUDI 100 AVANT QUATTRO 2.3 86-87 AUDI 100 AVANT QUATTRO 2.3 136 88-90 AUDI 100 AVANT QUATTRO 2.3 136 88-90 AUDI 200 QUATTRO 2.2 TURBO 20 89-90 AUDI 200 QUATTRO AVANT 2.1 TURBO 83-86 AUDI 200 QUATTRO AVANT 2.1 TURBO 86-88 AUDI 200 QUATTRO AVANT 2.2 TURBO 83- 86 AUDI 200 QUATTRO AVANT 2.2 TURBO 86-92 AUDI 200 QUATTRO AVANT 2.2 TURBO 20 89-91 AUDI A8 D2 / 4D 2.8 96-98 AUDI A8 D2 / 4D 3.7 95-98 AUDI A8 QUATTRO D2 / 4D 4.2 94-98 AUDI S8 D2 4.2 340 96-99