You'll like it!
+I've had mine for a week. The sound gets a little louder and richer after you've drive it for a few miles. It's 30 degrees here, and I roll the windows down just to listen to the burble (you know what I mean!).
2010 E82 6MT-M Package//PTF Dyno Tune//Alpine Weiss//Carbon Roof//Carbon R Spoiler//Euro Light Switch//Black Grills//Michelin PSS 235 255//Berk Cat Back//Lux v8//ER CP Tial BoV//CDV Delete//Hardwire V1//