Burns Stainless' exclusive No Holds Barred (NhB) exhaust systems for Harley-Davidson motorcycles are complete and ready to install. Specifically designed for the Milwaukee 8 (M8), Twin Cam and Pan America motorcycles. Are you tired of the dead spots in your power band? Our pipes are engineered to give you a wider power-band to increase power through the shifts. As seen in racers from the Bagger Racing League drag and road courses.