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      02-28-2008, 10:50 AM   #3
Icedog_16
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Drives: 2011 E92 335is
Join Date: Feb 2008
Location: Tampa, FL

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TADTS - They All Do That, Sir! Every car I've ever had (turbos and NA) has had carbon deposits inside the tailpipe.

The SSTT doesn't have anything to do with it. My guess is that, if anything, that would make your car run lean. How long have you had your car? I'd say probably not very long.
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