BMW M2c/M3/M4 S55 VIS Crank HubBMW S55 M3 M4 One Piece Crank Hub CrankHub 4 pin solution Issues relating to the standard three piece crank hub on the S55 & N55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the Vis Motorsport one piece billet Crank Hub together . The OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston to valve contact can occur and, if not totally standard and within

your tuner has the capability to increase fuel pressure levels to beyond 180 bar

Full tank of chosen fuel for tuning

The Mazda DISI's OEM operating pressure is 110 bar

We only stock the STG1 10mm upgrade as this is the most commonly used

PLEASE BE AWARE THAT LEAD TIMES MAY VARY

a much higher pressure is not possible

VIS have developed this one-piece Crank Hub to ensure owners have complete peace of mind

IS YOUR VEHICLE TUNE READY

THIS IS TO CONFIRM & LOCK IN A DATE FOR TUNING

this is adequate for proper atomization and fuel mass delivery into the cylinders

the fuel system is pushed to its limits to provide the requested fuel mass

We generally combat this with a higher idle RPM via tuning