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: 5 Diameter (mm): 276 Height (mm): 46 Thickness (mm): 10 Minimum thickness (mm): 9 Axle application: Rear APPLICATION Brand Model Engine Value Power (KM) Year ALFA ROMEO 147 3.2 250 2002-2003 ALFA ROMEO 147 3.2 250 2003-2005 ALFA ROMEO 156 1.6 2002-2006 ALFA ROMEO 156 1.75 2002-2006 ALFA ROMEO 156 1.9 TD 2002-2006 ALFA ROMEO 156 2.0 2002- 2006 ALFA ROMEO 156 2.4 TD 2002-2003 ALFA ROMEO 156 2.4 TD 2003-2006 ALFA ROMEO 156 2.5 2002-2006 ALFA ROMEO 156 3.2 2002-2003 ALFA ROMEO 156 3.2 2003-2006 ALFA ROMEO GT 1.75 140 2004-2010 ALFA ROMEO GT 1.9 TD 150 2004-2008 ALFA ROMEO GT 1.9 TD 170 2008-2010 ALFA ROMEO GT 2.0 165 2004-2010 ALFA ROMEO GT 3.2 240 2004-2007