Thanks for positive feedback guys.
I have the review on part 3 of the exhaust in here: http://www.e90post.com/forums/showthread.php?t=84788
It sounds almost as quiet as stock; however it is a lot louder on startup and in certain RPM ranges it gives out this pissed off F1 like sound. That setup was too quiet for me and with SR pipes everything is perfect.
Drove it for the first time yesterday and got into 3 races. Before the exhaust I never had a single race...lol