Ducati Sports mufflers  Performance sports systems are designed and Built by two very highly skilled Motorcycle exhaust manufactures out of Italy-Silmoto & Q.D All Ducati exhaust systems are built to a very high standard over and above set by European exhaust manufacturing standards The Exhaust systems and mufflers are tested by inhouse dyno to give maximuim Torque & Hoarsepower and that unique Ducati sound !