I haven't touched the rear yet. Been thinking about using a set of E32 or E34 calipers back there but I haven't done the research yet to see if they are ventilated disks or not. Not much point in changing if they aren't. The 540i rotors on the front are about the biggest and widest that will fit within the calipers and I did use the E46 carriers.Originally Posted by Montreal525
Paul