The R1 Concepts Geo-Carbon drilled-and-slotted rotor for 2006–2013 BMW 328i RWD (rear left) is produced for that rear-wheel-drive application. The rotor’s drilled and slotted braking surface aids heat management and pad cleanup, helping restore consistent pad contact when replacing a worn rear rotor. It’s specified for the rear left position on compatible 328i RWD vehicles.
R1 06-13 BMW 328I Rwd Rear Left Drilled & Slotted Geo-Carbon Rotor