FMF Factory 4.1 RCT Muffler - Yamaha YZ 250 F ('19-'20) / YZ 250 FX ('20) (aluminum - steel) - FMF

Tailpipe "slip-on" FMF Factory 4.1 RCT exhaust for Yamaha YZ 250 F (2019-2020) / YZ 250 FX (2020). 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 exhausts are constructed from materials used in the aerospace industry and meet the conditions and specifications required by FMF Racing. They are 100% manufactured in the factory in Southern California, USA. The "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 | carbon fiber
- model: Factory 4.1 RCT
- type: slip-on tailpipe
- tailpipe material: aluminum
- design: singular
- tailpipe cap material: carbon fiber
- mid-pipe material: stainless steel
- tailpipe color: natural
- country of origin: USA

Factory 4.1 RCT Slip-On Exhaust Muffler Aluminum Raw Yamaha YZ 250 F (2019-2020) / YZ 250 FX (2020).