Adapts 2 piston Z32 twin turbo calipers to E46M3 328x20mm rear rotors & E46M3 rear trailing arms. CNC aluminum with gold anodizing, laser logos, and 12.9 grade hardware. Pair with our reproduction calipers. Adapt to the the brake lines in the car by adding to cart the lines and fittings set we sell separately, E3646TAFBCLF. Drum parking brake can be retained if using single Z32 foot brake. Drum parking brake must be removed if pairing these with our dual caliper bracket