Whites Muffler Dunstall Reverse ConeJust like the classic Isle of Mann machines you too can have that retro racer look with these Dunstall replica mufflers. Built with a reserve cone for that old school racing sound and a stylish chrome plating finish these Dunstall replicas will look great on any custom build. Capable of fitting 1 5 8" (41mm), 1 1 2" (38mm) and 1 3 8" (35mm) pipes, they suit a range of applications. Classic British style Chrome plating finish Steel construction