A rebuild update on the BMW M2 with the S55 engine, filmed in 4K. This video covers the crank hub fix and shows how the engine now performs better than ever. Part of the M2 rebuild series, focusing on ...

Introduced in 2009, the N55 straight-six powerplant evolved into the S55 for the previous generations of the M3 and M4. The closed-deck block, lightweight crankshaft, twin fuel pumps, revised ...

This video presents a full tear-down of the BMW S55 engine from an F82 M4 with 130,000 miles, focusing on crank hub wear—a known issue in high-mileage and tuned applications. We examine wear patterns, ...