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      02-02-2010, 05:07 PM   #28
First Lieutenant
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Drives: e92 M3
Join Date: Sep 2008
Location: MD

Posts: 382
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08 M3  [0.00]
I have the AA with no x pipe. It's loud on startup due to the cold start. But as you proceed through the revs, the sound settles down and isn't too obtrusive while cruising on the highway. The sound is much better then OEM and I haven't noticed any drone. Even my wife appreciates it as it'll put the baby to sleep when we're out for a drive.
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