FMF Factory 4.1 RCT Exhaust System Blue Carbon Cap 109dB

Unleash the full potential of your off-road machine with the FMF Factory 4.1 RCT Exhaust System. Engineered for peak performance and durability, this advanced exhaust features FMF's innovative Resonance Chamber Technology, delivering superior power and a distinct sound profile.

Description

The FMF Factory 4.1 RCT Exhaust System represents the pinnacle of performance engineering for serious riders. Designed for models like the YZ250F from 2027 onwards, this system integrates FMF's proprietary Resonance Chamber Technology™ both internally and externally, optimizing exhaust flow for maximum power gains across the RPM range. Its innovative design achieves a shorter overall length, significantly reducing susceptibility to crash damage during intense off-road riding. Complementary to FMF's Factory Forward Engineering, the muffler is positioned closer to the motor, centralizing mass for improved handling and rider control. Constructed entirely from aerospace-grade materials, the Factory 4.1 RCT is built to exacting specifications and manufactured 100% at FMF’s Southern California facility, ensuring unparalleled quality and reliability. The distinct blue carbon fiber end cap not only adds a premium aesthetic but also contributes to the system's lightweight and durable construction. This FMF 4.1 RCT muffler system is rated at 109dB, providing a robust sound experience for your off-road adventures.

Features & Highlights

• Advanced Resonance Chamber Technology: Incorporates FMF's cutting-edge internal and external Resonance Chamber Technology for optimized exhaust gas flow, resulting in enhanced power delivery and a broader torque curve, crucial for demanding off-road performance.
• Optimized Durability & Crash Resistance: Features a shorter overall length design, making the system less vulnerable to damage from impacts and crashes during aggressive riding, ensuring longevity on the trail.
• Centralized Mass for Superior Handling: Engineered with Factory Forward principles, the muffler is positioned closer to the engine, centralizing the bike's mass for improved balance, agility, and rider control in dynamic conditions.
• Premium Aerospace-Grade Construction: Built from only the highest quality aerospace-grade materials, ensuring exceptional strength, heat resistance, and long-term durability under the most extreme riding conditions.
• Signature Blue Carbon Fiber End Cap: A striking blue carbon fiber end cap provides a distinctive, high-performance look while contributing to the system's lightweight and robust design, setting your bike apart.
• Proudly Made in the USA: Manufactured entirely at FMF's state-of-the-art facility in Southern California, guaranteeing meticulous craftsmanship and adherence to the highest quality standards for this performance exhaust.

Technical Specifications

• Brand: FMF
• Model Series: Factory 4.1 RCT
• Muffler End Cap: Blue Carbon
• Sound Rating: 109dB
• Construction Materials: Aerospace-grade
• Manufacturing Location: Southern California, USA

Important to Know

• FIM Sound Regulation: This exhaust system will not pass the 2025 FIM sound regulation.