The muffler as the successor component of motorcycle exhaust gas serves to muffle engine noise and filter exhaust emissions according to emission standards. Muffler products continue to evolve as vehicle engine technology advances. Catalytic converter application to meet increasingly stringent emission thresholds both for the domestic and export markets. Competence in product manufacturing for more than 20 years has become YMI's competitive advantage in addition to the strong support of the principal in the development and testing of new products.