S58 Crossover Pipe For BMW G80 M3, G82 M4, G83 M4 Explorer Our high-quality n54 downpipes are

Our high-quality n54 downpipes are engineered to unlock the full potential of your N54 engine

free firmware updates

Replace factory bolts

The Precision Raceworks Billet Engine Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay

S58 Crossover Pipe For BMW G80 M3, G82 M4, G83 M4 Explorer Our high-quality n54 downpipes areThe ARM S58 Crossover Pipe is designed to replace the restrictive factory S58 crossover pipe with a fully round design that improves exhaust flow. Unlike the OEM oval shaped pipe, the ARM crossover pipe maintains a consistent round shape, eliminating turbulence and flow restrictions caused by the factory design. Exotic exhaust sound Precision laser cut flanges Compatible with OEM and upgraded midpipes SS304 stainless steel construction 4 lbs lighter