Turbo Groove automotive brake discs have a widened, arcuate gap that increases the flow of cool air, lowering the temperature of the brake pads and brake 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: 4 Diameter (mm): 276 Height (mm): 62 Thickness (mm): 14 Minimum thickness (mm): 12 Axle application: Back APPLICATION Brand Model Engine Value Power (KM) Year CITROEN C5 1.6 TD 2005-2008 CITROEN C5 1.6 TD 2005-2008 CITROEN C5 SALOON 1.8 2001-2008 CITROEN C5 ESTATE 1.8 2001-2008 CITROEN C5 2.0 2001-2008 CITROEN C5 2.0 TD 2001-2004