DBA DBA52832BLKS 5000 Series T3 Slotted 2-Piece Brake Rotor with Black Hat

The DBA DBA52832BLKS 5000 Series T3 is a premium two-piece composite direct replacement brake disc rotor featuring DBA's patented T3 bi-directional slot design. Built on the proven foundation of the 4000 Series, the 5000 Series elevates braking performance with an aerospace-grade aluminum center hat and high-carbon cast iron rotor ring, making it an ideal upgrade for high-performance street driving, track days, club racing, and rally applications.

Two-Piece Construction:

• High-carbon XG-150 alloy cast iron rotor ring combined with a lightweight 6061-T6 aerospace-grade aluminum center hat
• Hat and ring are secured together with National Aerospace Standards (NAS) bolts and crimp nuts for a reliable, precision fit
• Two-piece design allows the cast iron ring to expand and contract uniformly under heat cycling, minimizing distortion and warping
• Reduces unsprung weight for improved vehicle handling and acceleration/deceleration response
• Replacement rings available separately for more economical long-term maintenance

T3 Slotted Surface Design:

• DBA's patented T3 tri-symmetrical CNC-machined slot pattern builds on the T2 slot design with additional exit points
• Slots evacuate brake pad friction dust and gases for a quieter, more responsive, and consistent pedal feel
• Bi-directional symmetrical slotting allows universal left/right fitment
• Slotting prevents pad glazing and maintains optimal pad-bite under extreme braking conditions

Advanced Technology & Finishes:

• Thermal Stability Profiling (TSP): Proprietary heat treatment process subjects XG-150 grey iron to controlled prolonged heat cycles, relieving internal stresses and maximizing thermal stability and fatigue resistance
• Kangaroo Paw Vane Design: 144 diamond and teardrop-shaped internal pillars deliver up to 20% better cooling efficiency and 30% more surface area versus conventional straight vane designs
• CBN (Cubic Boron Nitride) Machine Finish: Precision-turned rotor face minimizes disc thickness variation, reducing pad knock and premature wear
• Thermo-Graphic Heat Paint (TGHP): Color-changing paint markings provide a visual indicator at critical temperature thresholds, helping monitor rotor fatigue and inform pad selection
• Anodized black aluminum hat resists corrosion and enhances appearance

The DBA 5000 Series T3 is sold as a complete assembly with hat and rotor ring pre-installed, and replacement rings can be purchased individually for subsequent replacements — making it a cost-effective long-term performance braking solution.