Reinforced crank hub for BMW BMW S55, N55 engines. Stock crank hubs in these engines are common problems when reaching for a higher power. It tends to break or spin independently causing severe damage to the engine. Our upgrade solution is made for high-quality materials, tested by our racing drivers, and keeps your engine chain moving correctly and safely.
2 drill options:
- Without special 4mm drill 5700kr.
- With special 4mm drill 6150kr.