I have a complete set of Brakes from a 135i which consists of brembo 6 piston calipers in the front and 1 single piston int he rear. The brakes were used for less than 50km and are Brand New! it comes with front and rear calipers,discs, and pads. Not sure if they will fit any other models but i don't see why not as long as there is a proper mounting bracket and if the caliper clears the rim. They are powder coated grey and say BMW in white lettering on them.
below is a link to my kijiji ad for pics.
Im me for any questions