Universal – 100% Brand New, Never Mounted.Comes with a stainless steel welding adaptor allow to fit pipe 38mm – 51mm.Removable DB Killer reduce the noise,give a different riding experience. Fitment – It Is Universal Motorcycle Exhaust Can Be Used For GY6 ATV Scooter Dirt Bike Pit Bike Street Bike Ninja 300 400 Ya-ma.ha HON-D.A KA-WASA.KI SU-ZU.KI Fashionable Design – It’s a good upgraded exhaust / to increase the power performance for the motorcycle. High Quality – The motorcycle exhaust muffle is made of stainless steel with frosted surface,durable for long time use. User-friendly design, no additional adjustments required. Old equipment can be replaced directly, easy to use and easy to assemble and disassemble. Product description Specification:  Color: Black Material: Stainless Steel  Connection Diameter: 51mm(2inch)  We Provide a welding bracket to fit pipe with outlet 38-51MM.  Features:  100% Brand New, Never Mounted, High Quality  Removable DB Killer  Stainless Steel Welding Adaptor Allow To Fit Pipe 38mm – 51mm  Reducing Overall Weight For Top Performance To Obtain Max Output  Professional Installation Recommended  Fitment:  It Is Universal Can Be Used For GY6 ATV Scooter Dirt Bike Pit Bike Street Bike Ninja 300 400 Ya-ma.ha HON-D.A KA-WASA.KI SU-ZU.KI  Please check the size as the picture shows Package Includes:  1 * Exhaust Pipe And Sold With Hardware As Pictures  Installation Instruction NOT Included