Recently, after several sets of disks, I decided to install the Bimmerworld Brake Duct and backing plate kit.
For any of you who do track days on a regular basis I would strongly recommend this mod.
The ducts can be attached to the brackets that support the fog lights and the hoses, once attached, do not foul the wheels.
I re-installed my road pads this last weekend and inspected my track pads and disks. They hardly look used at all, the disks do not have any of the tell tale blueing, which indicates overheating. The pads look like they have just been run in. At the track the brakes performed superbly, no fade, no judder, just great strong brakes.
This is a top mod. for the track day junkies out there.