Thanks to its optimized intake and exhaust system, the LC4 engine even complies with the Euro IV emission control standards. A first in KTM’s history. EXHAUST2018-07-182018-07-18https://spinnin-wheel.com/wp-content/uploads/2019/08/logo_spinnin3.jpgSpinnin-Wheel AShttps://spinnin-wheel.com/wp-content/uploads/2018/07/690-duke-exhaust.jpg200px200px