FMF FACTORY 4.1 ALUMINIUM / CARBON END CAP 045594 KTM

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.

Notice: Closed Course Use Only
Item ID: 045594
Type: Slip-On
Configuration: Single
Const: Aluminum
Finish: Natural
Endcap: Carbon
Spark Arrestor: Screen Insert (included)
Carb Warning: no
Quiet Insert: 94dB Insert (included)
Weight: 4.3 lbs.

KTM
250 EXC-F 2017 - 2019,,,
250 SX-F 2016 - 2018,,,
250 SX-F FACTORY EDITION 2015 - 2017
250 XC-F 2016 - 2018
350 EXC-F 2017 - 2019
350 SX-F 2016 - 2018
350 XC-F 2016 - 2018
450 EXC-F 2018 - 2019
450 EXC-F SIX DAYS 2017 - 2019
450 SX-F 2016 - 2018
450 SX-F FACTORY EDITION 2015 - 2017
450 XC-F 2016 - 2018
500 EXC-F 2017 - 2019