QD EXHAUST Ducati Superbike 1098 X-DB the Sound Controller (racing)X DB sound controller by QD Exhaust for the Ducati Superbike 1098. Enhance the performance and sound of your Ducati Superbike 1098 with the X DB sound controller. As an original QD Exhaust product, this innovative modulation kit for the exhaust valve seamlessly integrates with the bike's stock wiring and utilizes all OEM components, including the valve, servomotor, and cables. With the X DB sound controller, riders have the flexibility to adjust the