Motorcycle Exhaust Can Muffler Removable Silencer 35mm 42mm 45mm 48mm 60mm UniversalDescription Universal Muffler Removable Silencer for MotorcyclesReduce deep note soundRemovableEasy installation Specification Color IronColor SilverSize As picture shownSilencer Length Type Two Type short long Outside Diameter 35mm 42mm 45mm 48mm 60mmThread Size 6mm Note 1 IMPORTANT No Instructions Included Professional Installation Is Highly Recommended2 Please check the size measurement chart carefully before making payment 3 Please allow 0 5 1 inch difference due to manual measurement 1 inch 2 54cm 4 The color of the actual items may slightly different from the listing images due to  different computer screen thanks for your understanding Package Included 1 X Silencer