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      06-22-2018, 07:53 AM   #6
beMtroubleYou
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Drives: M2C '18
Join Date: Feb 2017
Location: North EU

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2018 M2C  [0.00]
Quote:
Originally Posted by Rony316 View Post
Have had the downpipe for well over a year. But on a few occasions (like 3 separate times) I get these insane pops and burbles. I would say about double the volume. People on the sidewalk were frightened.

Sounds beastly. Almost wish it was always that loud, but I'm wondering if somehow the car is running too rich on those rare occasions.
Check valvetronic. Mine had this too and shaky idle, due to valvetronic sensor not working the car goes rich on idle but it wont pop until you drive it. Its hard to notice.

Do you have fuel smell on idle and when on light cruise?
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