EBC Ultimax OE‑style front rotors for 2006–2007 BMW 330i (E90) use progressively angled slots to provide quieter slotted rotor operation while still pulling in cool air for improved braking. The design clears dust and debris to preserve pad bite and pad life, offering cooler, more consistent braking without the excessive air noise commonly associated with conventional slotted rotors.
EBC 06-07 BMW 330 3.0 (E90) Premium Front Rotors