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): 325 Height (mm): 47 Thickness (mm): 30 Minimum thickness (mm): 28 Axle application: Front APPLICATION Brand Model Engine Value Power (KM) Year FORD EXPLORER (USA) (5TH GEN) 2.0 TURBO 2011-2015 FORD EXPLORER (USA) (5TH GEN) 2.3 TURBO 2016-2019 FORD EXPLORER (USA) (5TH GEN) 3.5 2011-2019 FORD EXPLORER ( USA) (5TH GEN) 3.5 2011-2019 FORD FLEX 3.5 262 2011-2012 FORD FLEX 3.5 287 2013-2019 FORD FLEX 3.5 TWIN TURBO 355 2011-2012