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Old 12-16-2012, 03:12 PM
02420X3 02420X3 is offline
Officially Welcomed to the 'Fest
Location: Boston
 
Join Date: Mar 2011
Posts: 644
Mein Auto: 2011 X3 35i
Carefully (it's hot!) check the exhaust when you do a cold start. If there is exhaust coming out of only the right side then it's normal. If there is also exhaust coming out of the left side then it has been "golf tee modded", either physically (by plugging a vacuum line) or electronically (by disconnecting a plug in the rear).
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