DBA DBA42132XS Series XS Cross-Drilled Slotted Disc Brake Rotor - 4000

The DBA DBA42132XS is a 4000 Series XS cross-drilled and slotted disc brake rotor engineered as a direct-fit, single-piece performance upgrade over stock OE braking components. Designed for drivers who demand more than factory braking capability, this rotor delivers superior heat management, improved bite, and long-lasting durability for high-performance street driving.

4000 Series XS Design:

• Non-directional cross-drilled and slotted surface — increases exit points for brake pad friction dust and gases, resulting in a cleaner, more consistent brake pedal feel
• Symmetrical slot and drill pattern allows universal left/right fitment with a single part number
• XG-150 High Carbon Alloyed Iron construction — provides superior resistance to thermal stress and metal fatigue under intense braking
• Thermal Stability Profiling (TSP) — DBA's proprietary heat treatment process realigns the microstructure of the iron for maximum rotor stability and reduced fatigue over the rotor's service life
• Kangaroo Paw vane ventilation — 144 diamond and teardrop patterned internal pillars achieve up to 30% more surface area and up to 20% better cooling efficiency versus traditional straight-vane designs
• CBN (Cubic Boron Nitride) machine-turned friction surface — minimizes disc thickness variation and reduces the risk of pad knock and premature wear
• Thermographic Heat Paint (TGHP) — paint markings change color at specific temperature thresholds, allowing monitoring of peak braking temperatures and rotor fatigue
• Anti-rust painted non-friction areas — protects the hub and hat from corrosion and enhances appearance
• Centre-split core castings for improved heat transfer and thermal efficiency

The 4000 Series XS is optimized for aggressive street use and light performance applications. The cross-drilled and slotted configuration is not recommended for heavy off-road or dedicated motorsport/track day use, making it an ideal upgrade for spirited daily driving and performance street applications. This rotor ships as a single unit.