Note:Installation Instruction NOT Included Fitment:It Is Universal Can Be Used For Dirt Bike, Street Bike, Scooter, ATV, Quad And Any Other Bike With Pipe Diameter 38-51 mm Package Included:1 x Exhaust Pipe Product description 100% Brand New   Color:As Picture Shown Material:  Stainless Steel Length: 350mm Connection Diameter: 51mm we have a welding bracket to fit pipe with outlet 38-51MM   Professional Installation Recommended Removable DB Killer/Silencer, Offer Different Sound Effect Stainless Steel Welding Adaptor Allow To Fit Pipe 38mm – 51mm Reducing Overall Weight For Top Performance To Obtain Max Output