The DBA 4000 Series drilled and slotted front rotor for 1997–2005 Holden Commodore and Ute applications is a replacement rotor cast from XG‑150 high carbon alloyed iron and processed with Thermal Stability Profiling. It features DBA's Kangaroo Paw ventilation pattern with 144 pillars, yielding up to a 30% increase in surface area and about 20% improved cooling efficiency versus traditional straight‑vane designs.
DBA 97-05 Holden Commodore / Ute Front Drilled & Slotted 4000 Series Rotor