The s55 m4 sounded like shit when people would put x pipes. The m performance exhaust had an h pipe that I was a fan of.
I know they're different as the s58 sounds better I think it has EL pipes out of the factory, but in general these motors sound better with H pipes than X pipes. They're too naturally high pitched to benefit from a x pipe, the h pipe helps it sound deeper
Car in the vid sounds good
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