These steel db-killers allow the sound to be adjusted by rotating the internal body.Closing and opening of the holes with variable pitch and fixing with 2 screws
Manual control via a multi-level selector: easily control your motorcycle's exhaust sound using the adjustable lever.The 51mm valve has only 4 holes.Includes all necessary mounting hardware and requires no cutting, welding, or other fastening.
Catalytic converter inserts to reduce harmful engine exhaust emissions.Specifically, uncomposed hydrocarbons, carbon monoxide and nitrogen oxides are converted into carbon dioxide, water and nitrogen.
High quality steel silencer inserts with DB Killer function and catalyst for the reduction of harmful exhaust gas emissions.They allow you to obtain a darker and more open sound while respecting the environment
