EBC pioneered 3GD brake rotors with dimple-drilled round indents decades ago to provide a solution to cracking problems that sometimes plague perforated rotors operating under high stress and heat conditions. What makes the 3GD Series dimpled and slotted sport rotors by EBC superior is the presence of both these dimpled indents and straight vent slots. Combined, they provide the superior expulsion of heat, water, brake dust, and friction gas that is needed to keep rotors cool and functional during street performance driving in any weather. Additionally, 3GD rotors feature a wider vented aperture for air to pass between both rotor sides, so metal expands evenly during use and the chance of warping is minimized. 3GD rotors are designed for use with EBC Greenstuff 4x4 brake pads, Greenstuff 2000 compact car pads, Yellowstuff heavy-duty 4x4 brake pads, and Yellowstuff / Redstuff pads created for shorter high-performance street or track runs and drifting. 3GD Brake rotors are anodized to prevent corrosion, and rotors should be fully ready for use after the first 500 miles of moderate brake application.