DBA 2004 WRX STi (5x100) Front Cross Drilled & Slotted 5000 Series Replacement Rotor Rings - DBA5654.1XS

DBA 5000 Series flat discs are designed specifically to replace just the rotor ring in DBA and other popular two-piece rotor configurations. They are available in multiple slot, drill, and dimple designs and various vent designs as well.
Installation Instructions