The DBA 5000 Series XD cross-drilled front rotor for 2015–2018 BMW M3 (with iron rotors) features a non-directional cross-drilled and dimpled design that provides enhanced structural support and additional cooling benefits over the HD finish. The XD surface treatment improves thermal performance while delivering a sportier aesthetic, making it a suitable replacement when buyers want upgraded cooling and disc appearance without altering hub components.
DBA 15-18 BMW M3 (w/Iron Rotors) Front 5000 Series Cross Drilled Rotor w/Silver Hat