S-pipe. Popular classic conversion. Takes all mufflers with stock 1-3/4" inlet. Heatshield rear 903656, for use with mechanical brake only. Note: The S-pipe system is a 2-piece front header, like OEM, which is flattened to fit between generator and frame tube for improved ground clearance in right turns. Note: Heatshields must be ordered separately when required. When heatshields are not mentioned they are not available.
Fits: > 36-47 Knucklehead
