DBA DBA42355XS 4000 Series Drilled and Slotted Brake Rotor

The DBA 4000 Series XS brake rotor delivers maximum performance with advanced materials and proven technology. This direct replacement single-piece brake rotor is designed for drivers seeking upgraded performance braking above and beyond standard OE levels, cast from XG-150 high carbon alloyed iron and undergoing Thermal Stability Profiling (TSP).

Key Features:

• Patented Kangaroo Paw ventilation with 144 diamond and teardrop patterned pillars achieves up to 30% increase in surface area and 20% improvement in cooling efficiency
• Unique cross drilled and slotted design increases exit points for brake pad friction dust and gases, resulting in better braking performance
• Thermal Stability Profiling (TSP) process subjects XG-150 grey iron to prolonged heat cycles under controlled conditions, ensuring maximum thermal stability and reduced metal fatigue in extremely high demanding applications
• Thermo-Graphic Heat Paint markings change color at specific temperature thresholds to assist with monitoring braking temperatures and rotor fatigue
• CBN (Cubic Boron Nitride) machine turned finish minimizes disc thickness variation and potential for pad knock
• Symmetrical slotting and drilling for universal left/right use
• Painted non-friction areas prevent rust and enhance appearance

The XS version is one of the highest quality cross-drilled rotors on the market, ideal when you want a high-quality rotor with the distinctive look of cross-drilling. Note: Drilled rotor configurations are not recommended for heavy off-road or track day usage.