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): 321 Height (mm): 59 Thickness (mm): 30 Minimum thickness (mm): 28 Axle application: Front APPLICATION Brand Model Engine Value Power (KM) Year AUDI A6 C6 / 4F 2.0 TD 170 2008-2011 AUDI A6 C6 / 4F 2.0 TURBO 170 2005-2011 AUDI A6 C6 / 4F 2.4 177 2004-2011 AUDI A6 QUATTRO AVANT C6 / 4F 2.7 TD 180 2004- 2011 AUDI A6 QUATTRO C6 / 4F 2.7 TD 180 2004-2011 AUDI A6 C6 / 4F 2.7 TD 180 2004-2011 AUDI A6 ALLROAD QUATTRO C6 2.7 TD 2006-2012 AUDI A6 QUATTRO C6 / 4F 2.7 TD 190 2008-2011 AUDI A6 C6 / 4F 2.7 TD 190 2008-2011 AUDI A6 QUATTRO AVANT C6 / 4F 2.7 TD 190 2008-2011 AUDI A6 QUATTRO AVANT C6 / 4F 2.8 2007-2011 AUDI A6 C6 / 4F 2.8 2007-2011 AUDI A6 QUATTRO C6 / 4F 2.8 2007-2011 AUDI A6 QUATTRO C6 / 4F 3.0 TD 233 2004-2011 AUDI A6 QUATTRO C6 / 4F 3.0 TD 225 2004-2011 AUDI A6 QUATTRO C6 / 4F 3.0 TD 211 2004-2011 AUDI A6 QUATTRO AVANT C6 / 4F 3.0 TD 225 2004-2011 AUDI A6 QUATTRO AVANT C6 / 4F 3.0 TD 211 2004-2011 AUDI A6 AL LROAD QUATTRO C6 3.0 TD 2006-2012 AUDI A6 QUATTRO C6 / 4F 3.2 255 2004-2011 AUDI A6 C6 / 4F 3.2 255 2004-2011 AUDI A6 QUATTRO AVANT C6 / 4F 3.2 2004-2011 AUDI A6 ALLROAD QUATTRO C6 3.2 255 2006-2010 AUDI A6 ALLROAD QUATTRO C6 4.2 350 2006-2010 AUDI A8 D3 / 4E 2.8 210 2007-2010 AUDI A8 D3 / 4E 3.0 220 2004-2005 AUDI A8 QUATTRO D3 / 4E 3.0 TD 250 2004-2010 AUDI A8 QUATTRO D3 / 4E 3.2 256 2005-2007 AUDI A8 D3 / 4E 3.2 256 2005-2007 AUDI A8 QUATTRO D3 / 4E 3.7 280 2004-2007