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): 305 Height (mm): 40 Thickness (mm): 28 Minimum thickness (mm): 26 Axle application: Front APPLICATION Brand Model Engine Value Power (KM) Year ALFA ROMEO 159 1.8 140 2005-2008 ALFA ROMEO 159 1.8 140 2008-2010 ALFA ROMEO 159 1.9 160 2006-2008 ALFA ROMEO 159 1.9 160 2008-2010 ALFA ROMEO 159 1.9 TD 120 2006-2008 ALFA ROMEO 159 1.9 TD 150 2006-2008 ALFA ROMEO 159 1.9 TD 120 2008-2011 ALFA ROMEO 159 1.9 TD 150 2008-2011 ALFA ROMEO 159 2.0 TD 170 2009-2012 ALFA ROMEO 159 2.0 TD 140 2010-2012 ALFA ROMEO 159 2.2 185 2006-2008 ALFA ROMEO 159 2.2 185 2008-2011 ALFA ROMEO GIULIETTA (940) 1.4 TURBO 170 2010- ALFA ROMEO GIULIETTA (940) 1.4 TURBO 150 2015- ALFA ROMEO GIULIETTA (940) 2.0 TD 140 2010- ALFA ROMEO SPIDER 2.0 TD 170 2009-2010 ALFA ROMEO SPIDER 2.2 185 2006-2008 ALFA ROMEO SPIDER 2.2 185 2008-2010