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      08-31-2011, 11:15 PM   #44
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Drives: E92 M3 LSB/Black 6MT
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2011 BMW M3  [4.67]
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Originally Posted by 1sikbmr View Post
1. It will sound like shit! the packing is to help the exhaust not sound like a tin can.

2. No engine codes. The only way you will get CEL is from removing primary cats. The sensors are only before and right after the primaries.
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