MMX BMW S55 & N55 Single Piece Crank Hub Upgrade TURBO (2009-2013) ** Side Skirts Diffusers can

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

a 6-point harness and a suitable roll-bar setup are strongly recommended

Pad shape number: S4932

If you're unsure

All of PWR’s intercoolers are individually leak tested and go through a fitment inspection to ensure critical dimensions are per our design

MMX BMW S55 & N55 Single Piece Crank Hub Upgrade TURBO (2009-2013) ** Side Skirts Diffusers canThe 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