Agostini Mandello long black mufflers for Moto Guzzi V7III Racer. Come with removable db-killers. These will work on the OEM ECU mapping, but we (GuzziTech) highly recommend our Fueling Revisions(!). See our Options below. If you don't see it, just ask... We are a Agostini dealer! These are not stocked, please order and allow 2-3 weeks for delivery (outside of Italy's August Holidays - allow 2-3 additional).