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The DBA 4000 Series slotted rotor for 2017–2021 BMW 230i with M Sport brakes and 348mm front rotor is a front direct‑replacement rotor featuring the T3 slot design. The bi‑directional slots provide enhanced pad gas and dust evacuation compared with smooth rotors, giving a direct‑fit option for drivers who want improved pad clearing and a sportier visual while maintaining factory serviceability.
DBA 17-21 BMW 230I (w/M Sport Brakes/348mm Front Rotor) Front 4000 Series Slotted Rotor
