DBA 5000 Series slotted two-piece rotor for 2010–2012 Audi S4. These composite rotors combine high-carbon cast-iron rings with aerospace-grade aluminum hats (T6061-T6) and NAS hardware to reduce weight and improve thermal behavior while sharing the cooling and ventilation benefits of the 4000 Series. Offered as full assemblies or replacement rings, the 5000 Series suits high-performance street driving, track day and club racing applications.
DBA 10-12 Audi S4 Front 5000 Series Slotted Rotor w/Black Hat