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The DBA 4000 Series plain rear rotor for 1998–2002 Subaru Impreza RS is a direct-replacement rotor cast from XG-150 high-carbon alloyed iron and treated with Thermal Stability Profiling to withstand repeated heavy braking. DBA's Kangaroo Paw ventilation uses 144 diamond and teardrop pillars to boost surface area and improve cooling efficiency compared with straight-vane rotors; the HD plain finish retains a smooth OE-style appearance favored in controlled race divisions.
DBA 98-02 Subaru Impreza RS Rear 4000 Series Plain Rotor
