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      10-04-2012, 12:38 PM   #3
MaximusJ
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Drives: 325i 2006
Join Date: Jul 2010
Location: Quebec, Canada

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'06 E90  [3.72]
It would be the right time to do it before the misfires happens. Bad plugs can wear out your coils. WAY cheaper to replace the plugs then the coils.