Each system features Yoshimura new end cap design that allows optional low volume inserts to be installed within seconds. As the undertail exhaust system began to emerge Yoshimura has always been ahead of the game in developing not only the most attractive undertail exhaust available, but offering performance gains that can be heard just by pushing the start button. Yoshimura's RS-5 muffler is specifically designed for the compact area under the rear seat. The wide trapazoidal design releases an exhaust note like none other.