This 2015 BMW M3 engine teardown shows what can happen when warning signs get ignored for far too long. The S55 engine is reliable with maintenance, but tuners push its limits. A teardown revealed ...
This classic BMW 2002 has been transformed with an 800HP single-turbo S55 engine swap, a widebody kit, and an air suspension setup. A perfect blend of old-school charm and modern performance. Watch ...
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 ...
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