I have three mufflers for this bike actually, the stock unit, this Two Brothers, and an HMF pipe. My favorite look is a tossup, the Two Brothers looks best when I run my Carbon Fiber panels, and the HMF looks better with the stock panels. The Two Brothers has a nice sound, and the HMF is a bit louder, and has more throat to it. Oddly enough, I actually prefer the "stock" muffler for sound, and if I go on extended trips - I will run that one. I'm tempted to ditch two of them in favor of an Akrapovic, but I like to swap them around alot, keeps it fresh. Plus, I need to hear an Akrapovic in person before I shell out that kind of money.