EBC GD1166 GD Sport Dimpled & Slotted Brake Rotor Set

The EBC GD1166 GD Sport Rotors are a third-generation performance brake rotor upgrade engineered for drivers who demand cooler, more consistent stopping power. Featuring EBC's signature wide-aperture slots and dimple-drilled surface, these rotors are an ideal upgrade over standard OEM discs for fast street cars, trucks, SUVs, and 4x4s.

Wide-Aperture Slot Technology:

• Full-sweep slots actively draw cool air under the brake pad-to-rotor interface, helping reduce pad contact temperatures that can exceed 1,000°F under heavy braking
• Slots expel dirt, dust, mud, and water from the braking zone for consistent pad-to-rotor contact
• Even pad wear is maintained across the full surface throughout the life of the brake pad set

Dimple-Drilled Design:

• EBC pioneered the dimple-drilled rotor in the 1990s as a safer alternative to through-drilled rotors
• Dimples allow for effective pad degassing without the stress cracking risk associated with fully drilled holes

Construction & Finish:

• Manufactured from high-quality G3000 grey cast iron to OE specifications
• 100% precision machined in the UK or USA across EBC's 14 machining centers
• Protected with EBC's long-lasting corrosion-resistant Thermic Black or NITROTHERM™ finish — a warm-nitrogen application process delivering superior coating adhesion and durability
• Every rotor undergoes a 100% runout, metallurgy, and dimensional inspection before release
• All sport rotors are balanced and runout-inspected prior to shipment

EBC GD Sport Rotors are sold as a set and are a direct OEM-style replacement, making installation straightforward with no modifications required. For a quieter alternative with similar performance, consider the EBC USR slotted series.