The EBC GD Sport slotted rear rotor set for 1986–1991 Porsche 928 5.0 is an OE-spec grey cast-iron vented rotor engineered for street and spirited driving. The 3GD series uses wide slots to evacuate dirt and gases for cooler running and reduced fade; 299mm diameter and 24mm thickness match OE-style dimensions. EBC specifies anodized protection on select finishes for added corrosion resistance.
EBC 86-91 Porsche 928 5.0 GD Sport Rear Rotors