Material The Universal Motorcycle Exhaust Aesthetically pleasing carbon fiber finish which made with Aluminum+Stainless steel Reducing Overall Weight For Top Performance To Obtain Max Output.durable, corrosion resistance and rustproof. Suitable for Various Bike Styles It is a universal slip on exhaust muffler that works with various bike including dirt bikes, street bikes, scooters, ATVs, quad and other bike with pipe diameter 38 mm to 51 mm. This is made possible by its welded stainless steel adapter which enables it to seamless blend fit pipes from 38mm to 51mm Great Sound Great sounds With a removable DB killer for changing sound. you can hassle-freely to make it super-loud when you remove DB killer, and you can also put the DB killer in to minimize the sound produced. Specification Overall Length: 365mm,Connection: 51mm Slip-on type;Motorcycle Unversal Exhaust Slip on Silencers & Mufflers ,1.5-2″ Inlet Stainelss Steel Motorcycle Exhaust Muffler Slip on Warranty :Manufacturer war