DBA DBA4979S 4000 Series T3 Slotted Front Brake Rotor

The DBA DBA4979S 4000 Series T3 Slotted Brake Rotor is a high-performance direct replacement brake disc designed for BMW E36, E46, Z3, and Z4 applications. This single-piece rotor delivers enhanced braking performance with significantly improved pedal feel, reduced noise, and superior heat management compared to standard OE rotors.

Key Features:

• Cast from high-carbon alloyed iron with Thermal Stability Profiling (TSP) for exceptional heat resistance during prolonged heavy braking
• T3 bi-directional slot design with precision CNC-machined tri-symmetrical slots for quieter operation, more responsive pedal feel, and improved dust and gas evacuation
• Kangaroo Paw ventilation system featuring 144 diamond and teardrop-shaped pillars, providing 30% more surface area and 20% better cooling efficiency versus straight vane designs
• Thermographic heat paint markings that change color at specific temperature thresholds to monitor braking temperatures and rotor fatigue
• Direct replacement design for easy installation with no modifications required

The 4000 Series T3 represents the ultimate in single-piece performance brake rotors, combining advanced metallurgy with DBA's patented slot design to deliver consistent, reliable braking performance for spirited street driving and performance applications. Built to handle extreme temperatures and repeated hard stops while maintaining superior braking effectiveness.