MMR Performance One Piece Crank Hub Upgrade – BMW S55/N56 – MMR20-1001 Issues relating to the standard three-piece crank hub on the S55 & N55 engine are widely known, but these are fully addressed with the installation of the MMR Performance one-piece billet Crank Hub. We recommend getting the capture plate with the crank hub upgrade, check it out here 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! Features: Prevent slipping of the friction plate, avoiding timing alterations and potential costly repairs Made from billet EN36 with 0.75mm case hardening for superior strength and durability One-piece design eliminates slipping of the friction plates We have developed this one-piece Crank Hub together 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; MMR have engineered the most comprehensive solution on the market and at one of the most compelling price points. MMR PART NUMBER: MMR20-1001 CATEGORY: ONE PIECE CRANK HUB UPGRADE I BMW S55 I N55 Additional Information Brand MMX
