Description

Factory 4.1 RCT Exhaust – Aluminum

The FMF Factory 4.1 RCT Exhaust System, model 045650, is designed for high-performance off-road motorcycles, combining innovative technology with durable construction. Featuring Resonance Chamber Technology (RCT), this exhaust incorporates a patented core shape that effectively reduces decibel levels while maintaining maximum power output. This advanced design ensures a quieter operation without sacrificing performance, making it ideal for riders seeking both power and compliance with noise regulations.

Internal ducts within the RCT chambers increase internal volume, resulting in improved exhaust flow and measurable power gains across the entire RPM range. The FMF PowerBomb header centralizes mass, enhancing balance and reducing the risk of crash damage, while the modular rear end cap allows for quick installation of tuning tip inserts or a spark arrestor by simply removing four screws. This flexibility makes it suitable for various riding conditions and preferences.

The system includes a QuietCore 94dB insert that meets AMA and FIM sound requirements, ensuring compliance during competitive events. Additionally, the muffler is equipped with a spark arrestor, enhancing safety and environmental responsibility. Crafted in the U.S.A., this exhaust system exemplifies quality engineering and durability, designed to withstand demanding riding environments and deliver consistent performance. Whether you’re upgrading your bike for racing or recreational riding, the FMF Factory 4.1 RCT Exhaust offers a blend of power, sound control, and ease of installation, making it a top choice for serious motocross riders.

Features:

• Resonance Chamber Technology (RCT): Patented core shape reduces decibels while maintaining maximum power output

• Internal Ducts: Increase internal volume for improved exhaust flow and power gains throughout the RPM range

• PowerBomb Header: Centralizes mass for enhanced balance and reduced crash damage risk

• Quick-Release Rear End Cap: Facilitates easy installation of tuning tips or spark arrestors with four screws

• Sound Compliance: Includes QuietCore 94dB insert meeting AMA and FIM sound requirements

• Spark Arrestor: Built-in for safety and environmental considerations

• Made in the U.S.A.: Ensures high-quality manufacturing and durability