How Loud is the B&B Tri Flow Exhaust on M3 or M Roadster

[Max Impact]

I’ve been eyeing the B&B Tri Flow Exhaust system for my M Roadster in the Bav. Auto Catalogue and was curios if anyone had purchased one of these. If so how loud is it and did you notice a performance gain? I would like to have a little deeper, more aggressive sound but don’t want to drown out my radio on the highway.

[///M Power]

My buddy had one on his e46m3. It was pretty medium sounding. Sounded good when he got on it and was tame at idle. He made the mistake of selling it and getting a Titanium muffler section, which he now hates.