SC Project Exhaust S1 Titanium Dual Undertail with stoneguard Grid for Hypermotard 698 (2024-2025) The S1 system is a direct slip-on replacement for the sc-project-exhau…rd-698-2024-2025/ stock exhaust. No cutting, welding, or major modifications are needed. Each kit includes all necessary hardware: stainless steel springs, mounting screws, heat-resistant adhesive, and detailed instructions. Since it’s made specifically for the Hypermotard 698 Mono, the fitment is precise. Installation is simple and can be done at home with basic tools.