It's been a little while but finally got around to putting a quick comparison video together of a cold start on the stock muffler vs the B2 Fab oval muffler. I will put together another video with revs and acceleration once I get a gopro mount that I can use a mic with.
I've now had the muffler on for about 1,000kms and I have to say it is exactly what I was looking for. There is very little / to no drone on the highway, and in the city it gives that deeper tone the original muffler lacked. Definitely a very livable every day exhaust that can be quiet when you want it and add a bit more emotion for a weekend drive. I would say the cold start (especially with winter here) is louder then I was expecting or looking for but it quiets down once she's up to temp.