DBA DBA42808WSLVXD Series Wave XD Cross-Drilled Dimpled Brake Disc Rotor - 4000 345mm Silver

The DBA DBA42808WSLVXD is a 4000 Series Wave XD single-piece performance disc brake rotor measuring 345mm in diameter with a distinctive silver hat finish. Engineered as a direct OE-replacement upgrade, this rotor is designed for drivers seeking braking performance well beyond standard factory levels.

This rotor combines DBA's signature Wave outer edge design with the XD cross-drilled and dimpled surface treatment. The Wave profile — inspired by motorcycle rotor technology — increases rotor surface area for greater heat dispersal and also reduces rotational mass at the outermost point of the rotor, where weight reduction has the greatest performance impact. The XD cross-drilled and dimpled pattern adds additional exit points for heat, friction dust, and gases, delivering enhanced cooling performance along with an aggressive, high-performance aesthetic.

Key Features:

• 345mm diameter single-piece disc brake rotor with silver hub finish
• Wave outer edge design for increased surface area and superior heat dissipation
• XD cross-drilled and dimpled surface for maximum gas and dust evacuation and enhanced cooling
• High carbon alloyed iron construction (XG-150 alloy) for superior strength and heat resistance
• Thermal Stability Profiling (TSP) heat treatment aligns the grain structure at the atomic level for uniform material consistency and resistance to warping
• Kangaroo Paw ventilation — 144 diamond and teardrop patterned internal pillars delivering up to 30% more surface area and 20% better cooling efficiency versus traditional straight vane designs
• Thermographic heat paint markings change color at specific temperature thresholds to help monitor rotor fatigue and peak braking temperatures
• CBN (Cubic Boron Nitride) machine-turned friction surface minimizes disc thickness variation and reduces the risk of pad knock and premature wear
• Painted non-friction areas resist rust and enhance appearance
• Symmetrical drilling pattern allows universal left/right fitment
• OEM cross-reference: 1K0615301M
• Minimum thickness: 28mm

The 4000 Series is recommended for performance street cars, heavily loaded SUVs and 4WDs, and towing applications. Drilled rotor configurations are not recommended for heavy off-road or track day use.