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      07-22-2012, 09:31 PM   #268
txz4
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Drives: 2006 M coupe
Join Date: Oct 2010
Location: san antonio, texas

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Quote:
Originally Posted by zubydafa View Post
guys with headers (no primary cats)...have your SES lights gone away with the tune? mine's still on.
your o2s still need to be connected. I assume they just turn the signal down to almost nothing.
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