Titanium slip-on exhaust muffler FMF Factory 4.1 RCT for KTM SX-F 350 / SX-F 450 / XC-F 450 I / XC-F 350 I (2019-2021) / SX-F 450 Factory Edition (2018) / Husqvarna FC 350 / FC 450 / FX 350 / FX 450 (2019-2021) / FC 450 Rockstar Edition (2020) / Gas Gas EX 350 F / EX 450 F / MC 450 F (2021). It can be used with both the original factory exhaust header and the FMF header.
The RCT (Resonance Chamber Technology) system is a patented design that reduces decibels without sacrificing the maximum power output of the engine. The Factory 4.1 RCT exhaust systems are constructed from materials used in the aerospace industry and meet the conditions and specifications required by FMF Racing. They are manufactured 100% in the factory in Southern California, USA. A spark arrester insert and QuietCore 94db are included. The weight is significantly reduced and power is improved across the entire RPM range.
Technical specifications:
- material: aluminum | steel | carbon fiber
- model: Factory 4.1 RCT
- type: slip-on muffler
- muffler material: aluminum
- design: unique
- end cap material: carbon fiber
- mid-pipe material: stainless steel
- muffler color: natural
- country of origin: USA
Factory 4.1 RCT Slip-On Exhaust Muffler Aluminum KTM SX-F 350 / SX-F 450 / XC-F 450 I / XC-F 350 I (2019-2021) / SX-F 450 Factory Edition (2018) / Husqvarna FC 350 / FC 450 / FX 350 / FX 450 (2019-2021) / FC 450 Rockstar Edition (2020) / Gas Gas EX 350 F / EX 450 F / MC 450 F (2021).
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