Thread: Exhaust valve
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      04-09-2018, 03:47 PM   #1
Shepway
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Drives: G30 540i xdrive
Join Date: Apr 2018
Location: Kent

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Exhaust valve
Hi I've got a quick question regarding the exhaust valve on my new 540i xdrive, is there any downside to having it permanently open i.e. power loss?
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