DBA DBA4402 Series HD Brake Disc Rotor - 4000 Front

The DBA DBA4402 is a 4000 Series HD single-piece disc brake rotor engineered by Disc Brakes Australia (DBA) for drivers who demand performance above and beyond standard OE braking levels. The HD variant features a smooth OE-style rotor finish, making it ideal for those who want the full benefits of the 4000 Series platform with a clean, factory-style appearance — a popular choice for controlled race divisions and street performance applications alike.

Key Features:

• Kangaroo Paw Ventilation System: DBA's patented vane design uses 144 diamond and teardrop-shaped pillars to deliver up to a 30% increase in cooling surface area and up to 20% improvement in heat dissipation compared to traditional straight-vane designs
• High Carbon Alloyed Iron Construction: Cast from XG-150 high carbon alloyed iron for superior strength, thermal stability, and resistance to metal fatigue under intense braking
• Thermal Stability Profiling (TSP): DBA's proprietary heat treatment process subjects each rotor to controlled, prolonged heat cycles to relieve internal manufacturing stresses — maximizing dimensional stability and durability under repeated high-load braking
• Thermographic Heat Paint (TGHP): Color-changing paint markings on non-friction surfaces change color at specific temperature thresholds, allowing drivers to monitor rotor temperatures and assess brake pad compatibility
• Centre-Split Core Castings: Increases heat transfer and overall thermal efficiency throughout the rotor body
• Corrosion-Resistant Finish: Non-friction surfaces are painted to prevent rust and maintain a clean appearance over the rotor's service life
• Direct OE Replacement: Single-piece design installs in place of the factory rotor with no modifications required
• CBN Machine Turned Finish: Minimizes disc thickness variation (DTV) for smooth, consistent pad contact and reduced vibration

The DBA 4000 Series HD is the go-to upgrade for performance-minded drivers who want a proven, high-carbon rotor with superior heat management over the stock unit, while maintaining a stock-look finish. Backed by DBA's extensive motorsport engineering heritage, the DBA4402 delivers reliable, repeatable stopping power whether on spirited street drives or demanding performance applications.