KOTTE Performance Crank Hub Upgrade suitable for N55 & S55 | F8x M3 M4 | F87 M2 M2C BMW

It's better known that the crank hub is one of the weak points of BMW S55 and N55 engines, especially when it comes to performance upgrades. The KOTTE Performance N55 & S55 Crank Hub Fix improves the frictional connection between the sprocket and the crankshaft with a diamond coating, thus ensuring greater safety and reliability. We recommend this crankshaft modification for heavily tuned engines where the crankshaft and pinion are subject to increased stress.

Suitable for the following models with BMW S55 engine:
- BMW F87 M2 Competition (M2C)
- BMW F80 M3
- BMW F82/F83 M4

Important note: The Crank Hub Fix should only be installed by a qualified workshop or technician. Improper installation may result in engine damage.