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: 4 Diameter (mm): 257 Height (mm): 47 Thickness (mm): 24 Minimum thickness (mm): 22 Axle application: Front APPLICATION Brand Model Engine Value Power (HP) Year of manufacture HYUNDAI ELANTRA 1.6 2000-2001 HYUNDAI ELANTRA 1.6 2001-2003 HYUNDAI ELANTRA 1.6 2003-2005 HYUNDAI ELANTRA 2.0 2000-2001 HYUNDAI ELANTRA 2.0 2001-2003 HYUNDAI ELANTRA 2.0 2003-2005 HYUNDAI ELANTRA 2.0 TD 2002-2003 HYUNDAI MATRIX 1.5 TD 12 2001-2002 HYUNDAI MATRIX 1.5 TD 12 2002-2005 HYUNDAI MATRIX 1.5 TD 16 2004-2007 HYUNDAI MATRIX 1.5 TD 16 2007-2010 HYUNDAI MATRIX 1.6 2001-2002 HYUNDAI MATRIX 1.6 2002-2007 HYUNDAI MATRIX 1.6 2007-2010 HYUNDAI MATRIX 1.8 2001-2002 HYUNDAI MATRIX 1.8 2002-2006