Dear Sir Madam, Type:Exhaust Pipe Product Name:Motorcycle Exhaust System Quality Certificate:ISO TS16949:2009 Material:Stainless steel,aluminum alloy Sample:Available Type:Re-fitting motorcycle dirt bike exhaust muffler Color:Colour Titanium ,Black ,Silver ,Half Blue Fit Size:38-51MM Item Length:325mm Application:Unibersal for Motorcycle Scooter Dirt bike