DBA DBA4909S Series Slotted Brake Rotor - 4000 T3

The DBA 4000 Series T3 slotted brake rotor is a premium single-piece performance rotor engineered for drivers demanding upgraded braking performance beyond standard OE levels. Designed for high-performance street cars, track use, and spirited driving, this rotor combines advanced metallurgy with innovative design features for superior stopping power and heat management.

Advanced Materials and Construction:

• Cast from XG-150 high carbon alloyed iron for exceptional strength and durability
• Thermal Stability Profiling (TSP) heat treatment process aligns the grain structure for maximum thermal stability
• Vented rotor construction with 280mm (11.02 inch) outer diameter and 30mm thickness
• Handles extreme stress and heat under intense braking applications repeatedly

Patented T3 Tri-Symmetrical Slot Design:

• 48 precision CNC-machined curved slots in tri-directional pattern
• Increases exit points for brake dust, gases, and debris to escape
• Reduces noise compared to straight slot designs for quieter operation
• Maintains consistent friction and cleaner disc surface
• Provides smoother, more responsive brake pedal feel

Kangaroo Paw Ventilation System:

• Patented design features 144 diamond and teardrop-patterned pillars
• Delivers up to 30% increase in surface area compared to straight vane designs
• Provides 20% improvement in cooling efficiency for better heat dissipation
• Enhances structural stability and reduces thermal stress

Additional Features:

• Thermographic heat paint markings change color at specific temperature thresholds
• Allows monitoring of peak braking temperatures and rotor fatigue
• Black protective paint on non-friction surfaces resists corrosion
• CBN (Cubic Boron Nitride) machine-turned finish minimizes disc thickness variation
• Direct bolt-on replacement for OE rotors with stock calipers
• 5-bolt pattern with 68mm center bore diameter

Ideal for performance street applications, track days, and demanding driving conditions where consistent, fade-resistant braking is essential. Sold individually.