MMX BMW S55 & N55 Single Piece Crank Hub Upgrade TURBO (2009-2013) Strong initial bite and refined

Strong initial bite and refined pedal feel for superior control

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and enhance stability during cornering without compromising everyday comfort

** Side Skirts Diffusers can be cut to the required length by the customer **

If you're unsure

MMX BMW S55 & N55 Single Piece Crank Hub Upgrade TURBO (2009-2013) Strong initial bite and refinedThe MMX Single Piece Crank Hub Upgrade is the ultimate solution to the well documented crank hub failures affecting BMWs S55 and N55 engines. Designed with a 4 pin dowelled single piece design, this upgrade eliminates the risk of the factory three piece hub slipping a known cause of catastrophic engine failure in M2, M3, M4, and N55 powered models. CNC machined in the UK from heat treated billet EN36 steel with 0. 75mm case hardening, the hub offers