FACTORY 4.

Factory 4.1 RCT Carbon KX450F Muffler: Performance and Sound Control for Your Motorcycle

Discover the Factory 4.1 RCT Carbon KX450F slip-on muffler from FMF, a perfect blend of power, noise control, and durability. Designed to optimize performance while meeting the strictest sound standards, this muffler offers auditory comfort without compromising the dynamics of your KX450F.

• RCT (Resonance Chamber Technology) with patented core, specially developed to reduce decibels while maintaining maximum power.
• Ingenious internal conduits in the RCT system chambers that increase internal volume to improve exhaust flow, ensuring power gains across the entire RPM range.
• FMF’s Factory Forward Engineering design, centralizing mass for better weight distribution and increased impact resistance in case of a fall.
• Innovative rear cap allowing easy installation of tuning inserts or a spark arrestor, accessible after removing only four screws.
• Guaranteed compatibility with the original header or FMF header, facilitating integration on your motorcycle without complex modifications.
• Strict compliance with AMA and FIM sound requirements, allowing you to race or ride on the track with approved equipment.
• QuietCore 94 dB insert included, for effective noise reduction while maintaining a powerful and pleasant sound.
• Integrated spark arrestor in the muffler, ensuring enhanced safety in natural environments.
• 100% American-made, a mark of quality and expertise recognized in the motorcycle world.

Choose the Factory 4.1 RCT Carbon KX450F muffler and enjoy the perfect balance of performance, sound comfort, and durability. Your motorcycle deserves the best.