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      05-30-2012, 09:58 PM   #2
mesropb23
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Armenia
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Drives: E92 M3
Join Date: Oct 2008
Location: SoCal

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does this setup keep intact the oem cats? If so, does it really change the exhaust note much?
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2009 AW E92 M3 - sold
2007 BSM E92 335 - sold
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