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M550 exhaust flaps open = much better sound
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04-27-2019, 05:10 PM
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BardG
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Drives: 2019 M550xi
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M550 Fuse Pull
I pulled Fuse #203, to be honest I haven't noticed a big difference, I can hear a deeper tone at idle or low revs, but in daily driving not much louder than stock at all. Is this the same for anyone else who's tried this?
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