Living in Czech Republic, geographically in the heart of EU, this summer my and my brother bought two new BMW M5 F90 wich was delivered during august 2019. Both of them comes with BMW OS 7, Live Cockpit Professional and apparently MODIFIED ECU that causes completely loss of sporty sound. Although both cars are equiped with M Sport Exhaust – they can‘t produce burbles, crackles and backfires. Now the cars sounds like regular V8 automotive product without any touch of exceptionality, aggressiveness or M feeling.
Because that change was made by BMW without one single previous notice or explanation to customers and because BMW sold us a M Sport exhaust system (EUR 1500 on each car) wich does virtually NOTHING to sound of the car, we wrote a official complaint. Letter was send to Mr. Sebastian Mackensen, Head of Sales at BMW AG Munchen, Markus Flasch, chief of BWM M and also to chief of local Czech Republic branch. See entire document attached here in separate thread:
Official customer complaint – post july 2019 cars loses sportier sound