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      06-11-2020, 05:38 PM   #239
NYC_340i
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Drives: '20 M340i xDrive, '11 X3 28i
Join Date: Jun 2011
Location: NYC

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Quote:
Originally Posted by mhkorean View Post
Midway through my drive, my MPE had an extremely loud pop on a downshift and then after that got quiet. Almost as quiet as stock exhaust w/ sport+.

Anyone else experience this? I almost think one of the valves closed up somehow. I might get it checked out if it doesn't fix itself in the next few days.
I get the random loud pop every once in a while too. Catches me off guard in a good way but I never had an issue with it getting quiet afterwards.
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Current: 2020 M340xi
Previous: 2016 340xi
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