Motorcycle Accessories Exhaust Full system Factory 4.1 RCT Megabomb Inox Yamaha YZ250F (19-23)
The FMF brand specializes in off-road exhausts, drawing on its experience in Motocross, Enduro and Supermotard competition.
From the outset, Factory 4.1 RCTs stand out from other mufflers thanks to the use of top-of-the-range materials, providing increased power and torque across the entire engine speed range, as well as considerable weight savings compared to the original system.
- Factory 4.1 RCT complete line in aluminum
 - Stainless steel connecting tube
 - Carbon fiber end cap
 - Spark arrester included
 - For use on closed stroke only
 - Noise reducer included
 - New RTS (Rapid Tuning System)
 - Stainless steel MegaBomb FMF manifold included
 
- Yamaha WR 250 F (250cm3) 2023 - 2024
 - Yamaha YZ 250 (249cm3) 2022 - 2024
 - Yamaha YZ 250 F (250cm3) 2019 - 2025
 - Yamaha YZ 250 FX (249cm3) 2020 - 2025
 
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