The EBC 99-01 BMW 323 2.5 (E46) USR Slotted Rear Rotors are a high-performance braking system designed specifically for the BMW 323 2.5 (E46). These rotors feature a unique slotted design that helps to reduce brake fade and increase braking power. They also feature a special hard anodized finish that helps to reduce corrosion and wear. The EBC 99-01 BMW 323 2.5 (E46) USR Slotted Rear Rotors are a great choice for those looking for a reliable and powerful braking solution for their BMW 323 2.5 (E46).