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      05-17-2011, 01:42 AM   #444

Drives: e92 335i
Join Date: May 2011
Location: Bellevue, WA

Posts: 162
iTrader: (0)

I just did the same mod this past weekend by using a 7/32" ball bearing to plug the vacuum hose. Love the sound now!! I do a lot of hwy driving and at around 75mph, you can hear the exhaust purring in the background. Turn the music up slightly louder and you won't even hear it. On the outside though, it's actually pretty audible IMO. =D