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1. Pulling the fuse when the flaps are open (Sport Mode), means they cannot close when moved out of that mode. Hence, they stay in Sport mode.
2. I assume driving in Sport Mode all the time is same as pulling the fuse - the flaps are both open.
It essentially keeps the flaps open in ALL modes ALL the time. A big sound improvement for those not always in Sport Mode.
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2018 M550iX-Dinan Stage 1 | 2011 E93 M3 Convertible | 2002 E46 M3 Convertible | 2002 E53 X5 3.0 | 2000 E39 540i | 1998 E36 M3 | 1988 E28 M5 | 1987 E28 528i
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