Just thought Id post this here. I have arh long tubes and Borla XR-1 muffler swap. For all those wondering about drone, I found the magic number. 1480rpms. Under that and its whisper quiet on the highway. For me that is about 65-70 mph. Anything over that and it does drone. I dont mind since I kinda like it. But if I had a family with kids and a wife, I could see other non-truck people being annoyed.
And of course at WOT it sounds nasty