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      06-03-2012, 06:41 AM   #109
cn555ic
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Drives: 335i
Join Date: Jun 2007
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Eric. I told u that you will probably see SES light since you took out primary cats. It mOst likely o2 sensors throwing cat efficiency codes. You will need 02 mOdifiers IMO
When u get these codes the car runs like crap and misfires because the a/f is all banged up
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