SC Project S1 Titanium Exhaust for Z1100 (2025+)
Lightweight S1 Design for the Kawasaki Z1100
The SC Project S1 Titanium Exhaust for Z1100 (2025+) offers a focused slip-on upgrade for the latest Kawasaki Z1100. Within the SC Project range, the S1 combines lightweight construction, distinctive design, and an aggressive exhaust tone to complement the strong character of the new-generation four-cylinder naked bike. Visit our website for more parts and accessories of Kawasaki
Slip-on mufflers provide a practical first step when upgrading a motorcycle’s exhaust system. The S1 follows this approach with a compact design that adds a sporty appearance while maintaining the road-legal specification of the Z1100.
High-Grade Titanium Construction
SC Project crafts the S1 muffler from high-grade titanium. This material helps keep the exhaust exceptionally light while providing the technical appearance expected from a premium performance component.
The S1 weighs only 1.3 kg, compared with 5.8 kg for the OEM exhaust. Therefore, it delivers a claimed 4.5 kg weight reduction, making the exhaust more than 75% lighter than the original.
This substantial weight reduction supports the lightweight character of the Z1100 while giving the exhaust a distinct performance-focused identity.
Performance Gains
The S1 delivers claimed gains of up to +1.1 hp at 8500 rpm and +0.6 Nm of torque at 7200 rpm.
SC Project also states that the exhaust provides a constant improvement in power and torque delivery across the low and mid-range. These gains complement the significant weight reduction provided by the titanium construction.
Deep and Aggressive Exhaust Sound
Sound forms an important part of the S1’s character. The exhaust enhances the voice of the Z1100’s four-cylinder engine with a deep and aggressive tone.
At the same time, the S1 remains fully compliant with Euro 5+ regulations. Therefore, riders can enjoy its distinctive exhaust character while retaining its approved road-legal specification.
Aggressive Slash-Cut Outlet
The S1 features a hyper-aggressive slash-cut outlet that gives the muffler a sharp and sporty appearance. This design element works with the compact body to complement the aggressive styling of the Kawasaki Z1100.
A carbon fibre end cap further enhances the appearance. Its contrasting material adds a premium racing-inspired detail to the titanium muffler.
Hand-Welded Sector Link Pipe
The S1 uses a titanium link pipe with a hand-welded sector design. SC Project combines advanced technologies with premium materials to create a technically focused exhaust package.
The hand-welded construction adds to the distinctive appearance while reflecting the detailed manufacturing approach behind the S1.
Laser-Etched SC Project Logo
SC Project completes the muffler body with a laser-etched SC Project logo. The logo integrates directly into the body and follows the unique lines of the Z1100.
Together with the titanium body, carbon fibre end cap, and slash-cut outlet, this detail creates a clean yet aggressive visual finish.
Plug-and-Play Installation
The S1 uses a slip-on configuration with a bracket mounting system. Installation is fully plug-and-play, providing a straightforward upgrade for the Kawasaki Z1100.
Furthermore, no ECU remapping is required according to the supplied product information. This makes the S1 a convenient exhaust upgrade without the need for additional ECU calibration.
Euro 5+ Street-Legal Approval
The SC Project S1 carries EC/ECE type approval and remains street legal under Euro 5+ regulations. A type approval certificate also comes with the exhaust.
This combination makes the S1 suitable for riders who want a lightweight and aggressive slip-on exhaust while retaining its approved road-legal specification.
Designed to Match the Z1100
The SC Project S1 Titanium Exhaust for Z1100 (2025+) combines high-grade titanium construction, carbon fibre styling, performance gains, and a distinctive sound.
With a claimed +1.1 hp, +0.6 Nm, and 4.5 kg weight reduction, the S1 provides a focused upgrade for the latest Kawasaki Z1100. Its slash-cut outlet, hand-welded sector link pipe, carbon fibre end cap, and laser-etched logo complete the aggressive look.






















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