DBA's 4000 Series XS rotors feature our best technology & materials for maximum performance. High carbon & heat treated iron, patented Kangaroo Paw ventilation and a unique drill & slot...

DBA's 4000 Series T3 rotors feature our best technology and materials for maximum performance. High carbon & heat treated iron, patented Kangaroo Paw ventilation and Tri-symmetrical slotting...

DBA T3 T-Slot BMW M3 Sedan & Convertible Front Slotted 4000 Series Rotor

DBA T3 T-Slot BMW M3 Sedan & Convertible Rear Slotted 4000 Series Rotor