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      01-04-2013, 03:05 PM   #3
Sluggoslinger
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Drives: 2012 550i Dinan Stage 4
Join Date: Oct 2012
Location: Orange County, CA

iTrader: (1)

I asked my dealer about that before i did mine and the response i got was that they have never given anyone trouble for an exhaust.

The only time you'd have an issue is if you went in for a warranty claim that they could actually tie to the exhaust.