Removable DB killer/silencer, offer different sound effect ??reducing overall weight for top performance to obtain max output Universal suits for dirt bike, street bike, scooter, ATV, quad and any other bike with pipe diameter 38-51 mm Most motorcycles can be applied,but diameters 38-51mm??not for all types motorcycles Deliver from US local warehouse free shipping ,takes 3-5 working days to arrive Responsive after sales customer service,could reach us for any problems and get replied in 24 hours Product description Features?? Fashion design style , a great accessory to dress up your rides. Removable DB killer/silencer, offer different sound effect ??reducing overall weight for top performance to obtain max output. It Is universal can be used for dirt bike, street bike, scooter, ATV, quad and any other bike with pipe diameter 38-51 mm. Most motorcycles can be applied,but diameters 38-51mm??not for all types motorcycles. Package Includes: