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): 280 Height (mm): 54 Thickness (mm): 30 Minimum thickness (mm): 28 Axle application: Front APPLICATION Brand Model Engine Value Power (KM) Yearbook NISSAN 200SX S14 2.0 TURBO 94-2001 NISSAN 300ZX GZ32 3.0 94-98 NISSAN 300ZX Z32 3.0 TWIN TURBO 90-94 NISSAN SKYLINE (R32) 2.0 TURBO GTS 89-94 NISSAN SKYLINE (R32) 2.0 TURBO GTS- T 89-94 NISSAN SKYLINE (R32) 2.0 TURBO GTS-T 91-94