FMF FACTORY 4.1 RCT STAINLESS SLIP-ON

Fits The Following Bikes:

GAS GASEX250F 2021-2022
GAS GASMC250F 2021-2022

HUSQVARNA FC250 2019-2022

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


FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP (045632)



The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our 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 our exacting specifications and is manufactured 100% at our Southern California factory.

-Available in Natural Aluminum Muffler with Carbon End Cap

-Massive Power gains throughout the RPM range.

-Huge weight savings

-New RTS (Rapid Tuning System)

-FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards.

-See Features Tab -> Fitment for header compatibility