Send From California Warehouse, It Is Universal Muffler Can Be Used For Street Bike, Scooter, Quad And Any Other Bike With Pipe Diameter 35-51mmMaterial: Stainless Steel, Length: 310mm, Connection Diameter: 51mmIncludes mounting clamp and a 38-51mm adaptor,Without Instruction,(If you do not have a 50.8mm diameter front or middle link pipe, you will need use 38-51mm adapter Welding on your Bike.)Sounds Really Great;Come Without Removable DB killer But Dual Outlet; Fit for Left and Right side.It’s a good upgrade to increase the power performance for the bike.Product DescriptionSpecification: Condition:100% brand new Material: Stainless Steel,Stainless Steel Welding connector. Color: As picture show. Exhaust Muffler Without Movable DB Killer Dual Outlet. Connection inlet Dia: 51mm . Sold with Clamp and hardware as picture. Stainless steel welding adaptor allow to fit pipe 38MM-51MM. It is universal muffler can be used for dirt bike street bike scooter atv quad and any other bike with pip