The Alcon rear brake kit for 2015+ BMW F80 M2/M3/M4 fits the F80 platform with 4‑piston red calipers and 380x32mm rotors for the rear axle. This upgrade pairs high‑friction pads with piston designs intended to promote even pad wear; pin‑mounted pads are used to simplify pad changes. It is specified as a rear axle replacement for supported BMW models.
Alcon 2015+ BMW M3 F80 380x32mm 4 Piston Rear Brake Upgrade Kit - Red