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): 298 Height (mm): 78 Thickness (mm): 31 Minimum thickness (mm): 29 Axle application: Back APPLICATION Brand Model Engine Value Power (KM) Year CHEVROLET CAMARO (1ST GEN) 4.9 68-69 CHEVROLET CAMARO (1ST GEN) 4.9 68-69 CHEVROLET CAMARO (1ST GEN) 5.0 1969 CHEVROLET CAMARO (1ST GEN) 5.0 1969 CHEVROLET CAMARO (1ST GEN) 5.4 1969 CHEVROLET CAMARO (1ST GEN) 5.4 1969 CHEVROLET CAMARO (1ST GEN) 5.7 1969 CHEVROLET CAMARO (1ST GEN) 5.7 1969 CHEVROLET CAMARO (1ST GEN) 6.5 1969 CHEVROLET CAMARO (1ST GEN) 6.5 1969 CHEVROLET CAMARO (1ST GEN) 7.0 1969 CHEVROLET CAMARO (1ST GEN) 7.0 1969 CHEVROLET CAMARO (1ST GEN) 7.0 1969 CHEVROLET CORVETTE (C2) 5.4 63-67 CHEVROLET CORVETTE (C2) 6.5 1965 CHEVROLET CORVETTE (C2) 7.0 66-67 CHEVROLET CORVETTE (C3) 5.4 68-69 CHEVROLET CORVETTE (C3) 5.7 69-72 CHEVROLET CORVETTE (C3) 5.7 73-77 CHEVROLET CORVETTE (C3) 5.7 78-82 CHEVROLET CORVETTE (C3) 7.0 68-69 CHEVROLET CORVETTE (C3) 7.4 70-73