Works with the stock seat. Intense Killer Bagger looks that compliment both bike & rider simultaneously. Kit comes with bond-on fuel tank halves and matching side covers with metal mount pins. The side covers are direct press-on replacements for the stock items. Works with all bag stretches from 4 to 8 inch. Parts are made of hand-laid unpainted gel coated fiberglass that is very stiff; strong; straight and light. Note: Works with OEM FLHX style seat and OEM saddlebags. Not compatible with Killer Custom stretched bags. Note: A minimum clearance of 7mm is advised between side covers and saddlebags. Note: Requires fitment checks before painting and final assembly.