FMF Factory 4.1 RCT Exhaust for Kawasaki — 042403

The Factory 4.1 RCT delivers massive power gains across the RPM range with a lighter, crash-resilient design, leveraging FMF Resonance Chamber Technology internally and externally to optimize flow and throttle response.

A shorter overall length reduces crash damage risk and, with Factory Forward Engineering, moves the muffler closer to the motor to centralize mass for improved handling and agility on demanding rides.

Constructed from aerospace-grade materials and using a titanium alloy tuned to FMF standards, this exhaust is manufactured 100% in FMF’s Southern California facility. The muffler is available in Natural Aluminum with a Carbon End Cap, delivering a sleek, race-inspired look that complements Kawasaki models.

The Factory 4.1 RCT is engineered to deliver substantial horsepower gains while trimming weight. RTS (Rapid Tuning System) enables quick, precise adjustments, and the installation is straightforward for both professional technicians and enthusiastic riders alike.

• Part number: 042403
• Vendor: FMF RACING
• Compatibility: Kawasaki motorcycles
• Finish: Natural Aluminum muffler with Carbon End Cap
• Technology: FMF Resonance Chamber Technology (internal and external)
• System: Factory 4.1 RCT with RTS (Rapid Tuning System)

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.

-Available in Natural Aluminum Muffler with Carbon End Cap 

-Massive Power gains throughout the RPM range.

-Huge weight savings

-New RTS (Rapid Tuning System)

-FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards.

The FMF Racing Factory 4.1 RCT exhaust system for Kawasaki motorcycles offers high-performance exhaust flow designed to optimize power and throttle response. Constructed with durable materials, this exhaust is engineered for riders seeking enhanced performance on and off the track. The Factory 4.1 RCT features advanced technology to deliver a significant increase in horsepower while maintaining a lightweight profile, ensuring improved handling and agility during demanding rides. Its sleek design complements Kawasaki models, providing both aesthetic appeal and functional excellence. Installation is straightforward, making it suitable for both professional racers and avid enthusiasts looking to upgrade their motorcycle's exhaust system. Whether you're competing or riding for recreation, the FMF Factory 4.1 RCT enhances your Kawasaki's performance with precision engineering and reliable durability.

Features:

• High-performance exhaust system designed for Kawasaki motorcycles

• Constructed with durable materials for long-lasting use

• Optimizes power output and throttle response

• Lightweight design to improve handling and maneuverability

• Sleek, race-inspired aesthetic suitable for competitive and recreational riding

• Easy installation for both professionals and enthusiasts

• Engineered to deliver increased horsepower and efficiency