DBA DBA42225XS 4000 Series XS Drilled and Slotted Brake Rotor

The DBA 4000 Series is a direct replacement performance brake rotor designed for drivers seeking upgraded braking performance beyond standard OE levels. Cast from XG-150 high carbon alloyed iron and undergoing Thermal Stability Profiling (TSP), DBA's metallurgy handles the increased stress and heat generated under intense braking applications. The XS variant features a premium non-directional cross-drilled and slotted design that increases the number of exit points, allowing more brake pad friction dust and gases to escape through both the cross-drilled holes and slots for better braking performance.

Key Features:

• Kangaroo Paw ventilation with 144 diamond and teardrop patterned pillars achieves up to 30% increase in surface area and 20% improvement in cooling efficiency
• Thermo-Graphic heat paint markings change color at specific temperature thresholds (green to white at 856°F, orange to yellow at 1022°F, red to white at 1166°F)
• Symmetrical slots and chamfered drill holes facilitate the exit of friction dust and gases for quieter, more responsive pedal feel
• Painted non-friction areas prevent rust and enhance appearance
• Symmetrical slotting and drilling for universal left/right use
• Features gold-finished hub for enhanced aesthetics

The DBA 4000 Series rotor is a mid-level brake rotor with more than enough performance for street-driven cars and works well for weekend track toys or autocrossers. The XS version is not recommended for motorsports usage but is more than capable for high performance street use. Increasing thermal stability allows DBA rotors to take more heat, making them more stable under heavy, frequent braking while experiencing improved brake pad and rotor life.