This kit employs the same 6-piston front/4-piston rear Brembo calipers as our E92 BBK and adds 380mm GiroDisc rotors in front and 370mm GiroDisc rotors in the rear.  Paired with Hawk Performance brake pads, Spiegler stainless brake lines, and, of course, custom Partee Racing proprietary brake brackets made from 7075 T6 aluminum, this brake kit makes no compromises compared to more expensive Brembo GT brake kits, including maintaining OEM brake bias and pedal feel.  Unless one is going all out and opting for the Partee Racing AP Racing kit, this is the BBK to have for the E39 M5.  Calipers come in Brembo red, but can be powdercoated any color you choose for an additional charge. NB:  THIS KIT DOES NOT FIT UNDER STYLE 65 WHEELS.  It does fit nicely under forged Apex and similar aftermarket wheels. Also pictured, but not included with the BBK, are our F82 hub and bearing conversions with 12.9 grade press in studs.