DBA DBA42954S 4000 Series T3 Slotted Front Brake Rotor

The DBA DBA42954S is a high-performance direct replacement brake rotor from DBA's premium 4000 Series T3 lineup, designed specifically for Mazda 3 front applications. This rotor features DBA's best technology and materials including high carbon heat-treated iron, patented Kangaroo Paw ventilation, and tri-symmetrical slotting for enhanced braking performance beyond OE standards.

Key Performance Features:

• Patented Kangaroo Paw ventilation with 144 diamond and teardrop patterned pillars achieves up to 30% increase in surface area and 20% improvement in cooling efficiency
• T3 design features 48 precision CNC-machined tri-symmetrical curved slots that dampen vibration harmonics and increase exit points for brake pad friction gases
• Cast from XG-150 high carbon alloyed iron and undergoes Thermal Stability Profiling (TSP) to handle increased stress and heat under intense braking
• CBN (Cubic Boron Nitride) machine turned finish minimizes disc thickness variation and potential for premature wear
• Thermo-Graphic paint markings change color at specific temperature thresholds to assist with monitoring braking temperatures

Additional Benefits:

• Tri-symmetrical slot design provides quieter operation, smoother brake pedal feel, and eliminates need for directional rotors
• Non-friction areas painted to prevent rust and enhance appearance
• Rated for severe motorsports use while maintaining excellent street performance
• Direct bolt-on replacement with minimal break-in required

This single rotor is engineered for enthusiasts seeking superior stopping power, improved heat dissipation, and extended rotor life compared to standard OEM rotors. DBA (Disc Brakes Australia) has been manufacturing premium brake rotors for over 40 years, with products chosen as original equipment by many vehicle manufacturers.