BMW M3 / M4 / M2C S55 One Piece Crank Hub / CrankHub /4 pin solution BILLETT
Issues relating to the standard three-piece crank hub on the S55 & N55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the Vis Motorsport one-piece billet Crank Hub together. The OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact can occur and, if not totally standard and within the warranty period, leaves owners with a very expensive repair bill! We have developed this one-piece Crank Hub to ensure owners have complete peace of mind, whether on an untuned factory car or equally for those that wish to increase the power and torque output significantly without ever having to worry again!
