FMF Factory 4.

FMF Factory 4.1 RCT Exhaust System YZ 250 F

The FMF Factory 4.1 RCT exhaust system is designed to provide exceptional performance to your bike while enhancing its appearance. With RCT (Resonance Chamber Technology™) integrated both internally and externally, this exhaust system offers a shorter overall length, making it less prone to damage in case of an accident.

• Significant power gain across the entire RPM range
• Considerable weight reduction to improve your bike's handling
• Constructed only with aerospace-grade materials meeting FMF's rigorous specifications
• 100% manufactured in FMF's Southern California factory
• New RTS (Rapid Tuning System) for easy adjustment
• MegaBomb header included for improved exhaust gas flow
• Spark arrestor included for safe use
• Comes with 94 dB insert to comply with noise regulations

With the FMF Factory 4.1 RCT exhaust system, you can enhance your bike's performance while giving it a unique look. Don't hesitate any longer and give your bike the best exhaust system with FMF.