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      01-05-2013, 02:07 PM   #4
Drives: E92 335i
Join Date: Sep 2012
Location: USA

Posts: 443
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Originally Posted by kfrazie1
I did the same thing to my down pipes. Realized those studs are welded to the down pipes and can't be removed. Landed up cutting them flush and drilling them out. Put in some nice ss bolts with anti seize.
This. For misfires, start with a fresh set of plugs. If your still getting misfires swap coils to see if the misfire follows the coil and replace as necessary.
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