GiroDisc 2020+ BMW M3/M4 (G80/G82/G83 w/Carbon Ceramic Brakes) 2-Piece 380mm Slotted Rear Rotors

The Girodisc A2-322 is a high-performance 2-piece slotted iron rotor set designed as a direct replacement and conversion for select BMW M series vehicles (M2, M3 G80, M4 G82/G83) that were originally equipped with carbon ceramic brakes. This conversion allows owners to switch from expensive, delicate carbon ceramic rotors to durable iron rotors, which can be preferred for track use due to cost, heat dissipation, and brake pad availability. The 2-piece design reduces unsprung weight and improves heat management, while the slotted design dissipates heat, evacuates brake dust and gases, and maintains a clean pad surface for consistent braking.