bmw M340i B58 vs bmw F80 M3/F82 M4 S55 sound TEST. Between the bmw B58 and S55, which car sounds BETTER? Both cars have catless downpipes and exhausts. The M340i has to sound better to me than the F80 ...

In this video we install an equal length midpipe and 200-cell downpipes on a BMW M4 F82 to transform the sound of the S55 engine. Unlike the stock setup, this configuration delivers a clean, ...