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      03-19-2013, 10:51 PM   #52
osteome's Avatar
Drives: 2009 M3 E93 SSII/Bamboo
Join Date: Oct 2005
Location: San Antonio, TX

Posts: 1,095
iTrader: (4)

I have the OEM mod that replaces the perforated pipes with solid pipes. I believe that the ACM mod is more of a straight pipe method, so the sound is a bit mellower with the method that I went with.

I had my mod completed locally and presume that the shop could either method.
2009 M3 E93 Silverstone II over Bamboo: 6MT, Tech, Premium, Cold, Premium Sound, Ipod, 19'' Wheels, OEM Exhaust Mod.
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