Saw this photo here on the board and figured I would do some research. I figured it was maybe the smaller caliper that brembo sells for their 365mm/345 setup. If this is possible I think it would be an awesome cost effective upgrade if you did just lines, calipers, and mounting hardware. Consumables are much cheaper using the oem rotors but you would still need to use the very expensive pads that fit the Brembo calipers. Another idea was maybe the stoptech 355/355 setup which would be great because the ST60/40 use cheaper pads. Any thoughts?
OEM
Front Rotor: 360x30
Rear Rotor: 350x24
Smaller Brembo Kit for e92
Front Rotor: 365x34mm
Rear Rotor: 345x28mm