Insane Performance One Piece Crank Hub BMW S55 M3/M4/M2C

The Insane Performance one-piece crank hub is a critical reliability upgrade for BMW S55 engines, eliminating the well-known failure point of the factory multi-piece crank hub. By replacing the OEM friction-based design with a solid billet unit, this upgrade ensures the timing gear cannot slip under load—protecting the engine from catastrophic damage.

Key Features

One-Piece Billet Design

– Replaces OEM multi-piece hub prone to slipping
– Eliminates friction plate failure completely
– Prevents timing shift under load

Pinned Crankshaft Fix (2 or 4 Pin Options)

– Dowel pins physically lock the hub to the crank
– 4-pin option for maximum security on high-power builds
– Proven on high horsepower applications

Built for High Power & Track Use

– Designed to handle extreme torque and RPM
– Suitable for hybrid turbo and big turbo builds
– Tested on builds exceeding 700–1000+ bhp

Complete Upgrade Solution

– Supplied with installation hardware
– Direct replacement for OEM crank hub assembly
– Engineered for long-term durability

Benefits

– Eliminates S55 crank hub slip (major engine failure risk)
– Protects engine timing under high boost
– Essential upgrade for Stage 2+ and tuned builds
– Peace of mind for track and high-performance driving

Fitment

– BMW M2 Competition (F87)
– BMW M3 (F80)
– BMW M4 (F82 / F83)

Installation Notes

– Engine timing must be reset during installation
– Crankshaft drilling required for pinned versions
– Professional installation strongly recommended
– Often paired with a capture plate for maximum security

About Insane Performance

Insane Performance specialises in robust drivetrain and engine solutions for high-performance BMW platforms, focusing on eliminating common failure points and supporting high-horsepower builds.