Material: Stainless steel, and covered with carbon fiber color vinyl that make the exhaust looks Luxury and attractive Removable DB killer offers difference sound effect Reducing Overall Weight for Top Performance to Obtain Max Output This Muffler suitable for motorcycles under 500cc,it can be used for Dirt Bike, Street Bike, Scooter, ATV, Quad and Any Other Bike with Pipe Diameter 38 mm, very easy to install, can be installed within 5 minutes Any help, you are freely contact with us Universal 1.5″ Inlet Stainless Steel Exhaust Muffler Great Sound Removable DB Killer Complete Accessories Easy Installation It is perfect for motorcycles under 500cc,it can be used for Dirt Bike, Street Bike 125cc, Scooter, ATV, Quad and Any Other Bike with Pipe Diameter 38 mm.