MMR 4-Pinned Single Piece Crank Hub For BMW N55 & S55 MMR20-1004FK MMR02-0102 Improve gas flow and increase

Improve gas flow and increase performance with our Borgwarner K03/K04 turbo blanket

Designed to be a direct OEM replacement

Insulate your Borg Warner kkk K16 turbo to reduce excess heat within your engine bay

Please confirm bulb fitment before purchase

MMR 4-Pinned Single Piece Crank Hub For BMW N55 & S55 MMR20-1004FK MMR02-0102 Improve gas flow and increaseThe 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 these dowels is certainly not a DIY job. But, to make the job easier for the professionals,