Optional available headers from the finest titanium offer an upgrade to a full system when used with either the stock muffler or Akrapovic low and high mount exhaust systems that come as standard or original accessory by Indian Motorcycles. Let your bike stand out with more power, beautiful design, and the unique Akrapovic sound.Stock heat shield or optional available carbon heat shield can be used. THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.