DBA DBA42705XS 4000 Series Cross Drilled Slotted Performance Brake Rotor

The DBA 4000 Series is a direct replacement single piece brake rotor designed for drivers seeking upgraded performance braking above and beyond standard OE levels. The XS variant features a premium non-directional cross drilled and slotted design that increases the number of exit points, allowing brake pad friction dust and gases to escape through both the drilled holes and slots for improved braking performance.

Advanced Construction and Materials:

• Cast from XG-150 high carbon alloyed iron and undergoes Thermal Stability Profiling (TSP), allowing the metallurgy to handle increased stress and heat generated under intense braking applications
• Features DBA's patented Kangaroo Paw ventilation that implements a series of 144 diamond and teardrop patterned pillars, achieving up to a 30% increase in surface area and 20% improvement in cooling efficiency compared to traditional straight vane designs
• TSP process subjects the XG-150 grey iron to prolonged heat cycles under strictly controlled conditions to relieve internal stresses, ensuring maximum thermal stability and reduced metal fatigue in extremely high demanding applications

Performance Features:

• Symmetrical slots and chamfered drill holes facilitate the exit of friction dust and gases for a quieter and more responsive pedal feel, with symmetrical design allowing universal left/right use
• Painted non-friction areas prevent rust and enhance appearance
• Thermographic paint markings change color at specific temperature thresholds to assist with monitoring braking temperatures and rotor fatigue
• Non-directional XS cross-drilled slot design eliminates the need for different left and right discs and provides consistent, strong brake feel

The XS version is not recommended for motorsports usage, but is more than capable for high performance street use. These premium one-piece brake discs are designed for high-performance street use and deliver track-style performance to your street ride.