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: Full Number of holes: 5 Diameter (mm): 295 Height (mm): 68 Thickness (mm): 10 Minimum thickness (mm): 9 Axle application: Back APPLICATION Brand Model Engine Value Power (KM) Year ASTON MARTIN DB7 3.2 SUPERCHARGED 335 93-97 DAIMLER SOVEREIGN 2.9 89-91 DAIMLER SOVEREIGN 3.2 90-94 DAIMLER SOVEREIGN 4.0 89-94 JAGUAR XJ6 2.9 89-90 JAGUAR XJ6 3.2 90-94 JAGUAR XJ6 4.0 89- 94 JAGUAR XJR 4.0 91-94 JAGUAR XJS 4.0 95-96 JAGUAR XJS 6.0 93-96