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      06-25-2021, 11:34 PM   #20
HZX540e
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Drives: 2021 X5MC
Join Date: Oct 2016
Location: Fairfax, VA

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Craziest thing ever

If someone told me about this I wouldn't believe them. As you know the flaps on my FI exhaust are always open (I took the plug out after they were opened). When I press the exhaust button (in the car next to the shifter) to the off position the car does NOT pop on up shifts. When I press it to the on position (green light on) the car pops like crazy on up shifts. You hear it in the videos I posted. The crazy thing is that I thought this button controlled the flaps and active sound. Well the flaps are always open on mine, so the button must be doing something to make the car pop so loud (no the sound is not from inside the car, see the video).

I learned something new today.
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