[Frslam]

Hi, really hope someone can help me. I'm looking to upgrade the brakes on my F15 30D to (front) 6 pot M Performance Brakes and matching brakes for the rear. It's a jump in size for the Brake Disks. The vendor tells me I would just use the stock Brake Disk Backing Plates which are already fitted to my car. My question is - were the Back Plates all the same size? I'd be increasing the Disk size from 332mm to 395mm Front and 320mm to 385mm Rear. Many Thanks