DBA DBA4546XS 4000 Series Drilled and Slotted Performance Brake Rotor

The DBA DBA4546XS is a premium 4000 Series XS Gold brake rotor featuring a non-directional cross drilled and slotted design with an attractive gold finish on the rotor hub. This direct replacement single-piece brake rotor is designed for drivers seeking upgraded performance braking above and beyond standard OE levels.

Advanced Metallurgy and Heat Treatment:

• Cast from high carbon alloyed iron and undergoing Thermal Stability Profiling, the metallurgy can handle the increased stress and heat generated under intense braking applications.
• Thermal Stability Profiling (TSP) subjects XG-150 grey iron to prolonged heat cycles under controlled conditions to relieve internal stresses, ensuring maximum thermal stability and reduced metal fatigue.
• Thermographic heat paint markings change color at specific temperature thresholds to assist with monitoring braking temperatures and rotor fatigue.

Superior Cooling Performance:

• Features DBA's 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.
• Centre-split core castings provide increased heat transfer and thermal efficiency.
• The unique cross drilled and slotted design increases the number of exit points, allowing brake pad friction dust and gases to escape through both the cross drilled holes and slots, resulting in better braking performance.

Key Features:

• Symmetrical slots and chamfered drill holes facilitate the exit of friction dust and gases, for a quieter and more responsive pedal feel.
• Cubic Boron Nitride (CBN) machine turned finish, minimizing disc thickness variation and the potential for pad knock and resulting premature wear.
• Painted non-friction areas to prevent rust and enhance appearance.
• Symmetrical slotting and drilling for universal left/right use.
• Suitable for high performance street use.

This XS Gold rotor combines race-proven technology with show-car aesthetics, making it ideal for enthusiasts who demand both superior braking performance and premium appearance.