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The DBA 4000 Series plain rotor for 2006–2015 Honda Civic Si is a direct-fit replacement that balances everyday drivability with improved thermal resilience. Made from XG-150 high-carbon alloyed iron and heat-treated via Thermal Stability Profiling, its Kangaroo Paw ventilation uses 144 diamond and teardrop pillars to increase contact area and cooling—delivering up to 30% more surface area and 20% better cooling than straight-vane designs—while the HD finish keeps an OE-style look.
DBA 06-15 Honda Civic Si Front 4000 Series Plain Rotor
