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Z4 M Evolve-R Group Buy
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07-22-2012, 09:31 PM
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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
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.
Appreciate
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txz4
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