Features

• The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externally
• Shorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering - moving the muffler closer to the motor to centralize mass
• The Factory 4.1 RCT is constructed from only aerospace grade materials that meet FMF's exacting specifications and is manufactured 100% at their Southern California factory
• Massive Power gains throughout the RPM range.
• Huge weight savings
• New RTS (Rapid Tuning System)
• Includes MegaBomb header
• Includes spark arrestor screen insert

FITMENT

KTM

• KTM 250 SX-F 2019-2022
• KTM 250 XC-F 2019-2022

Husqvarna

• FC 250 2019-2022

GasGas

• MC 250F 2021-2023
• EX 250F 2021-2023

PROPOSITION 65

⚠WARNING

This product can expose you to chemicals known to the State of California to cause Cancer or birth defects and reproductive harm. For more information go to: https://oehha.ca.gov/proposition-65