# EBC Brakes GD1178 GD Sport Dimpled And Slotted Vented 1-Piece Rear Rotors for 1986-1991 Porsche 928 ### Performance Overview EBC Brakes GD1178 GD Sport Dimpled And Slotted Vented 1-Piece Rear Rotors for 1986-1991 Porsche 928 is a vehicle-specific brake rotor designed for 1986-1991 Porsche 928, Porsche 928 S4 5.0L, Porsche 944 Turbo 2.5L. High-performance street drivers need an exceptional level of cooling that can be provided for by EBC GD Brake Rotors. The rotors can resist corrosion on non-contact areas because it comes with an anodized finish. These rotors work best when used with EBC Greenstuff 6000/7000 brake pads, EBC Yellowstuff brake pads and EBC Redstuff brake pads. The risk of cracking when the rotors are used under extreme heat and too much stress is eliminated due to the innovation of dimple-drilled indents and brake rotors. The indents combined with the rotors' straight vent slots discharges unneeded heat, brake dust, and friction gas. The rotors are made 100% reliable for street performance in any weather plus, it has a wider vented aperture for the free flow of air on ### Key Features - Designed as a vehicle-specific brake rotor replacement for rear applications - Helps restore smooth, consistent braking performance - Built for direct-fit installation on compatible vehicles - Supports reliable stopping power for daily driving - Recommended to verify year, make, model, and position before ordering ### Vehicle Fitment **Fitment Summary:** 1986-1991 Porsche 928, Porsche 928 S4 5.0L, Porsche 944 Turbo 2.5L **Position:** Rear - 1986 Porsche 928— Position: Rear - 1987-1989 Porsche 928 S4 5.0L— Position: Rear - 1990-1991 Porsche 928— Position: Rear - 1986 Porsche 944 Turbo 2.5L— Position: Rear ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase. This listing includes fitment data for 1986-1991 Porsche 928, Porsche 928 S4 5.0L, Porsche 944 Turbo 2.5L. **What part number is this?** The listed part number is GD1178. **Is this product designed for direct replacement?** Yes. This product is intended to match compatible vehicle applications listed in the fitment section. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering. ### Common Searches - brake rotor for Porsche 928 - rear brake rotor for 1986 928 - EBC Brakes GD1178 fitment - GD1178 rear brake rotor - gd sport dimpled and slotted vented 1-piece rear rotors for Porsche 928 ### Vehicle Fitment Table Year Make Model Position 1986 Porsche 928 Rear 1987 Porsche 928 S4 5.0L Rear 1988 Porsche 928 S4 5.0L Rear 1989 Porsche 928 S4 5.0L Rear 1990 Porsche 928 Rear 1991 Porsche 928 Rear 1986 Porsche 944 Turbo 2.5L Rear ## Details - **Price:** 473.87 CAD - **Vendor:** EBC Brakes - **Type:** Brake Rotor - **Tags:** 1986 Porsche 928, 1986 Porsche 944 Turbo 2.5L, 1987 Porsche 928 S4 5.0L, 1988 Porsche 928 S4 5.0L, 1989 Porsche 928 S4 5.0L, 1990 Porsche 928, 1991 Porsche 928, Automotive Parts, Brake Performance, Brake Rotor, Daily Driving, Direct Replacement, EBC Brakes, EBC Brakes GD1178, GD Sport Dimpled And Slotted Vented 1-Piece Rear Rotors, GD1178, Rear, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 473.87 CAD | In stock | ## Images - EBC Brakes GD1178 GD Sport Dimpled And Slotted Vented 1-Piece Rear Rotors for 1986-1991 Porsche 928 product image --- > Source: [Standard Auto Part](www.standardautopart.com/products/ebc-brakes-gd1178-gd-sport-dimpled-and-slotted-vented-1-piece-rear-rotors-for-1986-1991-porsche-928-gd1178) > Updated: 2026-06-18