DBA DBA42287S 4000 Series T3 Slotted Rear Brake Rotor

The DBA DBA42287S 4000 Series T3 Slotted Brake Rotor is a direct replacement single-piece performance brake rotor designed for drivers seeking upgraded braking performance beyond standard OE levels. Cast from XG-150 high carbon alloyed iron and undergoing proprietary Thermal Stability Profiling (TSP), this rotor is engineered to handle the increased stress and heat generated under intense braking applications time and time again.

Patented T3 Bi-Directional Slot Design:

Building on the foundation of DBA's T2 slot design, the T3 features additional precision CNC-machined tri-symmetrical slots that increase from 32 to 48 slots per rotor face. This advanced slotting increases the number of exit points for brake pad friction dust and gases to escape through, resulting in a quieter, more responsive, and smoother brake pedal feel. The bi-directional curved slot design dampens vibration harmonics and eliminates the need for directional rotors, allowing universal left/right fitment.

Kangaroo Paw Ventilation System:

DBA's patented Kangaroo Paw ventilation implements a series of 144 diamond and teardrop patterned pillars instead of traditional straight vanes. This innovative design achieves up to a 30% increase in surface area and 20% improvement in cooling efficiency compared to conventional straight vane designs, ensuring superior heat dissipation and thermal stability.

Key Features:

• XG-150 high carbon alloyed iron construction for superior heat capacity and durability
• Thermal Stability Profiling (TSP) heat treatment process eliminates internal stresses and improves fatigue resistance
• 48 tri-symmetrical slots for optimal gas evacuation and pad bite
• CBN (Cubic Boron Nitride) machine-turned finish minimizes disc thickness variation
• Thermo-Graphic Heat Paint (TGHP) markings change color at specific temperature thresholds for heat monitoring
• Painted non-friction areas prevent rust and enhance appearance
• Center split core castings for increased heat transfer
• 345mm diameter, rear axle application

Ideal for high-performance street driving, track use, and heavy-duty applications where superior braking performance and durability are essential. DBA 4000 Series T3 rotors are rated for severe motorsports use and typically last up to 3 times longer than standard rotors.