Audi S4 Brake Rotor (1) - Front - DBA - 4000 Series HD - `10-`12. This front rotor is a direct-replacement DBA 4000 Series HD disc engineered for drivers who want high-carbon metallurgy and a smooth OE-style finish for street or controlled-division use.

Cast from XG-150 high carbon alloyed iron and subjected to DBA’s Thermal Stability Profiling (TSP), this rotor is built to withstand repeated high-stress braking cycles. The patented Kangaroo Paw ventilation uses 144 diamond and teardrop patterned pillars to increase surface area and improve cooling compared to straight-vane designs. The 4000 Series HD provides the heat-management and wear characteristics of DBA’s 4000 line while keeping a plain, OE look; thermo-graphic paint (THGP) markings and moisture-proof corrosion protection packaging are included for convenience and part verification.

Features

• XG-150 high carbon alloyed iron for improved wear resistance
• Thermal Stability Profiling (TSP) for consistent performance under heat
• Kangaroo Paw ventilation with 144 diamond/teardrop pillars for better cooling
• Up to ~30% more surface area and ~20% improved cooling vs straight-vane rotors
• 4000 Series HD plain/OE-style finish; THGP markings; direct replacement fit
• Moisture-proof corrosion protection packaging

If you have questions or need help confirming fitment, call us directly — we’re happy to advise. We offer installation and customization services at our two locations in Austin, Texas and the Los Angeles, California area. Call: 512-982-9393 (TX) or 562-981-6800 (CA). If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov