Cut Throat
Just a few more details: These pipes are loud, I'm literally the loudest Harley in any event I've been to. These are definitely race pipes; Earplugs are a must! Great for short, very fast rides.
The one advantage I've found is that is on my old Honda, I'd get tail-gated frequently (that bugs me!) Even when driving much faster than I should have been, to the point where I frequently pulled off and let the cages pass. The Cut Throats seem to discourage anyone from following closely, and if they do a quick downshift sends them scurrying away. It's going to be hard giving up that feature.