MMR CRANK HUB 4-PINNED SINGLE PIECE UPGRADE I BMW S55 I N55 Configuration:with Capture Plate to better separate the oil

to better separate the oil from the crankcase vapors

Ramair twin core foam is unique and like no other in the market

The result

4 / 5150 rpm   HP (m) 626

MMR CRANK HUB 4-PINNED SINGLE PIECE UPGRADE I BMW S55 I N55 Configuration:with Capture Plate to better separate the oilEngine failures caused by the standard three piece crank hub on the S55 & N55 engine are (unfortunately) well known, but these are fully addressed with the installation of the MMR Performance 4 Pinned Single Piece billet Crank Hub, together with the option of adding our Capture Plate for ultimate security. MMR Performance now offers this uprated version of our popular Single Piece Crank Hub, with a 4 Pin dowelled location that locks onto the end of