The EBC Racing 2021+ BMW M3/M4 (G80/G82/G87) 2 Piece SG Racing Rear Rotors are a high-performance brake upgrade for the BMW M3/M4. These rotors feature a two-piece design that is made from a combination of high-grade stainless steel and aluminum. This design allows for superior heat dissipation and improved braking performance over the standard OEM rotors. The rotors also feature an aggressive slot pattern that helps to reduce brake noise and vibration. The rotors are designed to fit the 2021+ BMW M3/M4 (G80/G82/G87) models and are an ideal upgrade for those looking for improved braking performance.