This Titanium Silver 645Ci came to our facility for a brake upgrade. Having already been lowered on H&R coilovers and fitted with a set of 20" VMR V710 wheels, it was finally time to ditch the OEM brakes. Opting for a set of red StopTechs, we installed the 6-piston system in the front and the 4-piston system in the rear with slotted rotors all around. Not only will this new BBK offer dramatically better stopping power, but it looks absolutely fantastic on this sporty E63. Enjoy.