GiroDisc BMW G8X M3, M4 Rear Iron Rotor Conversion w/ Carbon Ceramic

Fitment Note: Use these rotors with the factory iron pad shape. These GiroDisc 2-piece rotors are a direct replacement for the 380mm carbon ceramic rear rotors on the BMW G8X M3 & M4. Our 2-piece, fully floating assemblies utilize the factory calipers and require no modifications other than switching the rotors and pads. These rotors use the factory iron pad shape with the carbon ceramic calipers. Please contact us if you need help finding pads. The rotor rings are machined from a proprietary casting made of high-carbon iron formulated to GiroDisc’s specifications. This superior metallurgy results in a rotor that holds up better, and the 72 curved vanes act as a centrifugal pump pulling air in through the hub to effectively cool the rotors under hard use. The 2-piece design means a reusable hat which can be attached to new rings (part number D2-322) when they need to be replaced. All major components including the hats, rotor rings, and drive pins are manufactured in-house at our f