EBC Racing 2021+ BMW M3/M4 (G80/G82/G87) 2 Piece SG Racing Rear Rotors

What you get here are EBC Racing's 2-piece SG Racing rear rotors, designed specifically for your 2021-2022 BMW M3 or M4. These aren't just standard replacements; they're a performance upgrade aimed at reducing weight and improving how your car handles, especially during spirited driving. By shaving off critical weight from the un-sprung rotational mass, these rotors help your car turn in more sharply, improve tire grip on the road, and can even lead to a slight increase in power felt at the wheels due to less drag.

The construction of these rotors is key to their performance and long-term value. They feature a floating design where the vented cast iron friction ring is mounted to a reusable center hub using stainless steel bobbins. This design allows for thermal expansion without causing stress or warping, which is crucial for consistent braking performance. When the friction ring eventually wears out after a period of hard use, you can simply replace the outer ring, keeping the center hub and bobbins. This not only lowers your long-term running costs but also means less waste.

These rotors are a direct replacement for your stock rear rotors, meaning they fit right into your existing brake system without needing modifications. The vented design helps dissipate heat effectively, which is essential for preventing brake fade during demanding driving conditions. If you're looking to enhance your M3 or M4's performance and handling, especially for track days or aggressive street driving, these 2-piece rotors offer a significant upgrade.