DBA DBA42245XS 4000 Series XS Cross-Drilled and Slotted Brake Rotor

The DBA DBA42245XS 4000 Series XS is a premium cross-drilled and slotted disc brake rotor engineered for drivers who demand upgraded braking performance above and beyond standard OE levels. Sold individually, this uni-directional rotor is a direct, single-piece OE replacement built from XG-150 high carbon alloyed iron and subjected to DBA's proprietary Thermal Stability Profiling (TSP) process — ensuring maximum thermal stability and reduced metal fatigue under demanding braking conditions.

Key Features:

• XS Cross-Drilled & Slotted Design: Non-directional cross-drilled holes combined with symmetrical slots increase the number of exit points for brake pad friction dust and gases, delivering a quieter, more responsive pedal feel
• Kangaroo Paw Ventilation: DBA's patented internal vane design features 144 diamond and teardrop patterned pillars, achieving up to a 30% increase in surface area and 20% improvement in cooling efficiency over traditional straight vane rotors
• XG-150 High Carbon Iron Construction: Cast from premium high carbon alloyed iron capable of handling the increased stress and heat generated under intense braking applications
• Thermal Stability Profiling (TSP): Proprietary heat treatment process subjects the rotor to prolonged heat cycles under controlled conditions, relieving internal manufacturing stresses for maximum long-term durability
• Thermal Color Indicator Stripes: Paint markings change color at specific temperature thresholds, allowing drivers to monitor peak braking temperatures and rotor fatigue over time
• Symmetrical (Uni-Directional) Design: Compatible for use on either side of the vehicle — no separate left/right rotors required
• Corrosion Protection: Non-friction areas are painted to prevent rust and enhance appearance throughout the service life of the rotor
• Chamfered Drill Holes: Smoothed hole edges help reduce the risk of cracking and extend rotor longevity

The 4000 Series XS is an ideal upgrade for high-performance street driving where both stopping power and aesthetics matter. Note: Cross-drilled rotor configurations are not recommended for heavy off-road or dedicated track day use. Sold as a single rotor.