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      02-19-2013, 05:50 PM   #1
WhatADream
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Drives: 335i Sedan 09'
Join Date: Sep 2012
Location: California

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What does a Misfire feel like?

Hey guys, I am running the Cobb tune, with BMS intake and upgraded downpipes.
Lately, under boost, It will feel like a couple hard studders while accelerating. especially in 4th gear. Also while idle, itll be smooth, with an occasional small burp. No codes. WTF is going on?
I ordered new plugs, hope that helps!
Is this common?
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09' 335i Sedan