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      06-13-2012, 10:12 AM   #9
Drives: 2009 E90 N54 TiAg
Join Date: Aug 2011
Location: South Florida

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2009 335i Sedan  [0.50]
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Originally Posted by mmmcookies330... View Post
They sound amazing, and from looking at them yesterday, very well constructed. Main reason I am asking is I will probably take them off and install the factory cats until warranty runs out.
You might want to check your ECU for a tune. If they have DP's installed it would throw a code without one... Just a shot!
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