FMF Racing KTM 450SXFFE 18+/XCF 19+/HQV FC450FE 18+/FX 19-22/EX450F 21-23 AL F4.1 RCT w/SS MB Hdr

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.

• Highest-quality proprietary blend of alloy grade titanium
• Blue anodized titanium muffler with carbon end cap
• Massive power gains throughout the RPM range
• Rapid Tuning System (RTS)

Designed To Fit:
2018 Husqvarna FC450 Rockstar Edition
2018 KTM 450 SX-F Factory Edition
2019 Husqvarna FC450
2019 Husqvarna Fx450
2019 KTM 450 EXC-F
2019 KTM 450 EXC-F Six Days
2019 KTM 450 SX-F
2019 KTM 450 SX-F Factory Edition
2019 KTM 450 XC-F
2020 Husqvarna FC450
2020 Husqvarna FC450 Rockstar Edition
2020 Husqvarna Fx450
2020 KTM 450 EXC-F
2020 KTM 450 EXC-F Six Days
2020 KTM 450 SX-F
2020 KTM 450 SX-F Factory Edition
2020 KTM 450 XC-F
2021 Gas Gas EX 450F
2021 Gas Gas MC 450F
2021 Husqvarna FC450
2021 Husqvarna Fx450
2021 KTM 450 EXC-F
2021 KTM 450 EXC-F Six Days
2021 KTM 450 SX-F
2021 KTM 450 SX-F Factory Edition
2021 KTM 450 XC-F
2022 Gas Gas EX 450F
2022 Gas Gas MC 450F
2022 Gas Gas MC 450F Troy Lee Designs
2022 Husqvarna FC450
2022 Husqvarna Fx450
2022 KTM 450 EXC-F
2022 KTM 450 EXC-F Six Days
2022 KTM 450 SX-F
2022 KTM 450 XC-F
2023 Gas Gas EX 450F
2023 Gas Gas MC 450F