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The DBA 4000 Series plain rotor for 2007–2013 Mazda Mazdaspeed3 2.3L rear applications is a direct-replacement rotor cast from XG-150 high-carbon alloyed iron and treated with Thermal Stability Profiling. DBA's patented Kangaroo Paw ventilation uses 144 patterned pillars to increase surface area and cooling efficiency, producing up to a 30% surface increase and roughly 20% improved cooling versus straight vanes. The HD finish retains an OE-style look for controlled appearance.
DBA 07-13 Mazda Mazdaspeed3 2.3L Rear 4000 Series Plain Rotor
