I don't know where this droning discussion is coming from. I've had the exhaust for over 18 months now and I can't claim that I've experienced the drone. In fact I will say, it is less dronier than the stock around the 2k rpm range.
The exhaust note is exotic, and it is getting deeper all the time, and since getting the BPM Sport tune recently, I've noticed it to be louder and throatier (if that makes sense. I think so
. I think one has to experience it in person rather than watch video clips. I haven't heard the OEM mod note, so cannot discuss comparision.
If you have the $$$s then by the /// Performance exhaust. If you want something on a budget I suggest one take the mod route. Money in your pocket and you're happy.