DBA DBA42447XS 4000 Series Cross-Drilled and Slotted Performance Brake Rotor

The DBA DBA42447XS 4000 Series XS brake rotor is a direct replacement performance upgrade designed for drivers seeking superior braking performance above standard OE levels. This premium cross-drilled and slotted rotor combines advanced materials, precision engineering, and innovative cooling technology to deliver exceptional stopping power and thermal management under demanding driving conditions.

Advanced Materials and Construction:

• Cast from XG-150 high carbon alloyed iron for maximum durability and heat resistance
• Thermal Stability Profiling (TSP) heat treatment process reduces internal stress and optimizes metallurgical structure for extreme applications
• Non-directional cross-drilled and slotted design for universal left/right application
• Cubic Boron Nitride (CBN) machine-turned finish minimizes disc thickness variation and premature pad wear

Patented Kangaroo Paw Ventilation:

• Features 144 diamond and teardrop-patterned internal pillars for superior cooling
• Achieves up to 30% increase in surface area compared to traditional straight vane designs
• Delivers up to 20% improvement in cooling efficiency for better heat dissipation
• Provides additional structural support to the friction face for enhanced stability under heat

Performance Features:

• Cross-drilled holes and precision slots evacuate brake dust, gases, and moisture for consistent pedal feel
• Thermographic Heat Paint markings change color at specific temperature thresholds to monitor rotor temps
• Painted non-friction areas prevent corrosion and enhance appearance
• Symmetrical design allows for bi-directional use, simplifying installation

The XS cross-drilled and slotted design provides an aggressive appearance while delivering measurable performance gains. The combination of drilled holes and slots creates multiple exit points for friction byproducts, resulting in improved brake response, reduced fade, and a more confident pedal feel. Ideal for performance street applications and enthusiasts who demand both style and substance from their braking system.