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      10-26-2012, 09:15 AM   #20

manari06's Avatar
Drives: 2013 E92 M3 Mineral White
Join Date: Jan 2010
Location: Illesheim, Germany

Posts: 1,008
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2013 BMW M3 E92  [4.75]
2007 335I Coupe  [5.00]
Just wondering if all of the pipes inside the exhaust gets changed out? On a video I watch on how to do the mod I noticed that 2 of the 4 pipes are partially perforated and wraped with some kind of insulating material. I would like to know if ACM replaces all or just the 2 that are fully perforated?