[Mb73288]

I have a 2019 330i Xdrive and it's in for it's first oil change and a recall . They gave me a 2020 330i Xdrive as a loaner and it's similar to mine except for not having live cockpit professional and is running idrive 6. To my surprise when in sport mode there is almost no exhaust burbles at all, not even any pops when down shifting. My 2019 in sport mode burbles like crazy and also sounds way louder even at idle. I could not believe the difference between them both . Has Any one else heard of this or have experienced this ?