DBA's 4000 Series uni-directional slotted rotor for the 2001 Subaru Impreza WRX STI rear 10-stud applications combines high-carbon, heat-treated iron with patented Kangaroo Paw ventilation and tri-symmetrical slotting. Offered as a direct replacement single-piece rotor, the 4000 Series T3 design is tailored to the specified WRX STI rear hub configuration.
DBA 2001 Subaru Impreza WRX STI 10 Stud Hole Rear Slotted 4000 Series Uni-Directional Rotor