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      01-10-2020, 07:35 AM   #12
bimmer456
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Drives: 340i
Join Date: Nov 2016
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Quote:
Originally Posted by Tam the Bam View Post
You can open the valve permanently with a small mod.

See this thread.

https://g20.bimmerpost.com/forums/sh...=Exhaust+valve
It might be very loud on cold start if you do this. On a side note if you go into sport after it warms up and it is open it will close if you go into comfort at low rpm. If you put it back in sport it will stay closed until you tap or press on the throttle so you won't get the better sounding sport mode idle until you do this. At least it does this on F30.
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