The EBC 09+ BMW Z4 3.0 (E89) USR Slotted Front Rotors are a pair of direct replacement rotors designed for the BMW Z4 3.0 (E89) model. These rotors are made from high quality cast iron and feature EBC's unique USR Slotted design. This design helps to reduce heat build-up and improve braking performance, while also providing superior resistance to brake fade. The slots also help to reduce pad glazing and improve pad bite. These rotors are a great upgrade for any BMW Z4 3.0 (E89) owner looking to improve their braking performance.