FMF 4.1 RCT Exhaust System with MegaBomb - Aluminum- 044456 - 2019-2022 Yamaha YZ250F, YZ250FX

FMF 4.1 RCT Exhaust System with MegaBomb - Aluminum- 044456 - 2019-2022 Yamaha YZ250F, 2020-2022 YZ250FX

The FMF 4.1 RCT Exhaust System utilizes aerospace grade materials and Resonance Chamber Technology™ to greatly improve performance and durability. With its included MegaBomb header, this system offers substantial power gains. It also comes with a spark arrestor screen insert and RTS for effortless tuning.

 FMF MegaBomb Header - Stainless Steel (Header Only)

The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externally

• Reduces risk of crash damage - Centralizes mass - Complements Factory Forward Engineering
• This FMF 4.1 RCT Exhaust System is made with aerospace-grade materials at FMF's Southern California factory to meet their strict specifications.
• Massive Power gains throughout the RPM range.
• Huge weight savings
• New RTS (Rapid Tuning System)
• Includes MegaBomb header
• Includes spark arrestor screen insert

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