Disc Master Performance Rotors Disc Master Performance Rotors are 1-piece, drilled & slotted direct replacement rotors for your factory brake system and stock calipers. Disc Master Performance Rotors offer improved cooling and stopping performance. Features & Benefits: • Geomet environmentally safe coating prevents rust • strict European standards • Does not contain Cr6+ (Hexavalent Chromium) hazardous   substances • Full machining • Mill balancing within OE tolerances • 500-hour salt spray corrosion testing – over 4X longer than typical     corrosion tests • Every Disc Master Performance Rotor is a direct replacement for a   factory brake rotor, allowing the retention of factory calipers for the   vehicle's system. Improved Directional Slotted & Drilled Design Disc Master Performance Rotors are a premium upgrade to stock replacement brake rotors and feature an improved drilled and slotted directional design. This improves brake system cooling and overall performance by wiping away the debris of used friction material that otherwise accumulates between the rotor and pad. Learn More Detailed Image