2021 BMW M3 Muffler delete sound clip.

The team at FMS Performance removed the stock muffler and replaced it with straight pipe and quad tips for a great look and nice sound. For more information visit the link below.
fmsperformance...

[@FrankHeddens]

It is just the muffler delete.

[@christianmedina9908]

Is that only muffler delete or with downpipes