MMR MMX Performance 4-Pinned Single Piece Crank Hub for BMW N55 & S55 MMR20-1004 Renault before being polished

before being polished

Removes ugly original plastic & restrictive air box

Drilling to the boot lid is required to fit this product

I strongly urge anyone looking for instantaneous boost from low-high range to purchase this product immediately

MMR MMX Performance 4-Pinned Single Piece Crank Hub for BMW N55 & S55 MMR20-1004 Renault before being polishedSingle piece crank hub with a 4 pin dowelled location that locks onto the end of the crankshaft. The centrepiece of the MMR kit is the UK made CNC machined one piece crank hub, created from billet EN36 steel that's heat treated with a 0. 75mm case hardening, making it incredibly strong and durable. Included are four aerospace precision machined dowels that mechanically lock the hub to end of the crank itself, plus a brand new OE bolt. Installation of