Vance&Hines missed the boat. We've got plenty of pipes available for our bikes, from Dale at Specialty, Thunderbike, Epco, BuB, Scepter and BritishCustoms(???). V and H just missed out, as did Mustang Seats.
Another exhaust option is any slip-ons made for the VTwin Baggers (Nomad, Ultra types). I really think they'll match up dimentionally.
