I have the SS Short Slash Cuts and love them. Plenty loud. I coast the bike down the street and start and let it warm up while coasting (about 1/4 mile). Plenty warm by then and just drive slow the rest of the way out of the housing development. I leave at 6:00 AM and don't want to upset the neighbors. They are loud when you get into the throttle, but sound good to me. Performance gain was good. Will be installing the Freak over the winter.