DBA DBA42058XS Series XS Cross-Drilled Slotted Performance Brake Rotor - 4000

The DBA DBA42058XS is a 4000 Series XS Gold performance brake rotor engineered for drivers seeking premium braking performance above OE levels. This single-piece replacement rotor combines DBA's advanced metallurgy with an aggressive cross-drilled and slotted design, plus an attractive gold finish on the rotor hub for enhanced aesthetics.

Advanced Cooling Technology:

• Patented Kangaroo Paw ventilation system with 144 diamond and teardrop-shaped pillars provides up to 30% increase in surface area and 20% improvement in cooling efficiency compared to traditional straight-vane designs
• Non-directional cross-drilled holes and slots create multiple exit points for brake pad friction dust and gases, improving brake consistency and pedal feel
• Center-split core castings maximize heat transfer and thermal efficiency

Premium Construction:

• Cast from XG-150 high-carbon alloyed iron for superior strength and thermal capacity
• Thermal Stability Profiling (TSP) heat treatment process relieves internal stresses and optimizes the rotor material for extreme braking applications
• CBN (Cubic Boron Nitride) machine-turned finish minimizes disc thickness variation and premature wear
• Symmetrical drilling and slotting allows for universal left/right use

Performance Features:

• Thermo-Graphic Heat Paint (TGHP) markings change color at specific temperature thresholds to help monitor rotor temperatures and brake system performance
• Black coating on non-friction areas prevents rust and enhances appearance
• Gold hub finish adds premium styling for show and performance vehicles
• Designed for street performance, track use, and spirited driving applications

The 4000 Series XS Gold rotor provides similar performance benefits to the T3 slotted design while offering enhanced visual appeal. Note: Drilled rotor configurations are not recommended for heavy off-road or extreme track day usage. Sold individually.