After reading numerous threads, exhaust at this point is a waste of money so I've decided to use the money to get some downpipes instead and then change the exhaust if I don't like the sound. Sorry folks. At the moment, I am going to keep the exhaust!
Current | 2011 E92 M3 - Mineral White, Black
Sold! | 2011 E92 335is - Titanium Silver, Black
Sold! | 2007 E92 335i - Space Gray, Black
Sold! | 2008 E90 M3 - Jerez Black, Fox Red