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The EBC Ultimax cross‑drilled front rotor for 2018–2021 Subaru WRX STI 2.5T is a vented, direct‑fit disc sized 340mm diameter. Cross drilling pulls cooling air through the rotor and helps clear dust to preserve pad bite while remaining quieter than conventional slotted designs. It’s an OE‑style replacement intended to improve thermal control during spirited driving.
EBC 18-21 Subaru WRX STi 2.5T RK Premium Drilled Front Rotors
