Yoshimura started back in 1954 when Hideo "Pops" Yoshimura started his company with his experience working on BSAs and Triumphs of service men stationed in Japan. Over the years he developed a reputation for building power and delivering a competitive edge. He expanded to the US with Yoshimura Research and Development of America, Inc. Yoshimura exhausts help to uncork your motorcycle's potential. It can be as simple as a slip-on or as comprehensive as a full exhaust system. Yoshimura motorcycle exhausts improve performance no matter if you ride a dirt bike or street bike. You can be fighting for pole position or fighting your way through traffic.