DBA DBA42592XD 4000 Series XD Drilled & Dimpled Performance Brake Rotor

The DBA DBA42592XD is a 4000 Series XD performance brake rotor featuring DBA's signature non-directional cross-drilled and dimpled surface design. As a direct-replacement single-piece rotor, it delivers a meaningful upgrade over OE braking performance for drivers seeking improved stopping power and thermal management on the street.

Cast from high-carbon alloyed iron and processed through DBA's exclusive Thermal Stability Profiling (TSP), this rotor is engineered to handle the increased stress and heat generated under intense and repeated braking events. The centre split core casting further improves heat transfer and overall thermal efficiency.

Key Features:

• XD Drilled & Dimpled Design: Non-directional cross-drilling and dimpling deliver enhanced cooling performance beyond the standard HD specification, plus a bold sports aesthetic
• Kangaroo Paw Vane Technology: DBA's patented ventilation system features 144 diamond and teardrop-patterned pillars for up to 30% more surface area and 20% better cooling efficiency vs. traditional straight-vane rotors
• Symmetrical Design: Universal left/right fitment — chamfered drill holes and symmetrical geometry facilitate the exit of friction dust and gases for a quieter, more responsive pedal feel
• CBN Machine Turned Finish: Cubic Boron Nitride machining minimises disc thickness variation, reducing the risk of pad knock and premature wear
• Heat Treatment Processed: Thermal cycling realigns the microstructure of the iron for increased rotor stability and long-term durability
• Thermo-Graphic Paint Markings: Paint indicators change colour at specific temperature thresholds, allowing easy monitoring of braking temperatures and rotor fatigue
• Rust-Resistant Finish: Painted non-friction areas prevent corrosion and maintain a clean, premium appearance

The DBA 4000 Series XD rotor is the ideal performance upgrade for enthusiasts who demand more than stock braking capability. Its combination of advanced metallurgy, innovative vane design, and precision machining make it a trusted choice for spirited street driving and demanding everyday use.