BMW used ATE as the OEM supplier for brake discs on the E9x M3s.
A pair of rear drilled and vented 2 piece brake discs with antirust coating. The discs are manufactured in High-Carbon and are supplied with bolts/screws to locate to the hub.
Vented - Diameter: 350.0
Thickness: 24.0
Minimum Thickness: 22.4
Height: 66.5
Bore Diameter: 75.0
Studs: 5x120