S-pipe; swingarm frame; kick & e-start; will not fit large FL battery; slider channels. Heatshield rear 903471. Note: Heatshields must be ordered separately when required. When heatshields are not mentioned they are not available. Note: Back in the day the ''S-pipe'' design was used by The Factory to improve ground clearance by routing the front header pipe between frame and generator; this required partially flattening the header. These systems may not fit custom frames.