I got the Dinan Free Flow Exhaust installed last week. The sound is fantastic when you first start it up. It also sounds good when you stomp on it on a highway onramp. However, the interior noise is a little more than I want to hear shen driving around town. I haven't heard it from a distance outside the vehicle, but I am concerened it might sound like a Chevy pick-up w/ a Flowmaster and I don't want my BMW sounding like that. The jury is still out on this mod.

I also have concerns about how far the exhaust pipes stick out. They seem too long. Can anyone else with this exhaust confirm that mine is installed correctly?