Nice job Michael!
Sounds really nice, and the gains are there. I'm not familiar with how the 330 sounds, but it sounds a lot meaner than my stock 325.
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E90 Mods (work in progress): Euro Xenon Headlamps, 19" ASA AR-1's with Toyo T1R 235 fronts and 275 rears, Breyton style front spoiler, Breyton style rear spoiler, Huper Optik 40% Tint, TiAG with Black 'ette and Aluminum trim, Chrome grills, chrome exhaust, Hartge lowering springs, PMB Hyperwhites.