What will certainly be the best brake set-up available is coming from Performance Friction. Go to the Bimmerworld site and look up their BBKs. I'd link it, but Bimmerworld's site doesn't link well for me. At $8k it's pretty pricey.
Dinan compliment of stuff plus PF rotors and RG63s. Enough for now.
Why, yes. I am an abrasive bastard.