Harley Davidson Touring: Exhaust Review and Howto | Hdforums
Feb 11, 2016· Aftermarket exhaust systems for Harley bagger can be grouped into two broad categories: 1) Slipons, and 2) Full systems. A slipon replaces just the mufflers, while the full system includes the head pipes, crossovers, and of course the mufflers, and sometimes dramatically changes the look of the bike.