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 Blue Anodized Titanium 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 specifically to our standards.
FOR ANY FITMENT QUESTIONS CONTACT US
TYPE A (PN#045633)
- 19-20 FC 250
- 19-20 250 XC-F, SX-F
TYPE B (PN#045629)
- 19-20 FC, FX 350
- 19-20 350 XC-F, SX-F
- 19-20 FC, FX 450
- 19-20 450 XC-F, SX-F
- 18,20 FC 450 ROCKSTAR EDITION
- 18 450 SX-F FACTORY EDITION
TYPE C (PN#045648)
- 20 FE, FEs 250-501
- 20 350-500 EXC-F, XCF-W
TYPE D (PN#045586)
- 16-18 FC 250-450
- 17-19 FE 250-501
- 17-18 FX 350-450
- 17-19 250 EXC-F
- 16-18 250-450 XC-F, SX-F
- 15-17 250 SX-F FACTORY EDITION
- 17-19 350, 500 EXC-F
- 18-19 450 EXC-F
- 17-19 450 EXC-F SIX DAYS
- 15-17 450 SX-F FACTORY EDITION
TYPE E (PN#045561)
- 13-14 HUSABERG FE 250-350, 501
- 14-16 HUSQVARNA FE 250-450
- 09-15 250 SX-F
- 09,11,13-15 250 XC-F
- 09-16 250 XCF-W
- 11-15 350 XC-F, SX-F
- 12-16 350 XCF-W
- 09-10 400 XCW
- 09-11 450 EXC
- 08 450 EXCR
- 13 450 SMR
- 07-15 450 SX-F
- 12-14 450 SXF FACTORY EDITION
- 09 450 XCF
- 13-15 450 XC-F
- 08 450 XCRW
- 09-10 450 XCW
- 12-16 450 XC-W
- 12-16 500 EXC
- 12-14 500 XCF-W
- 13-16 500 XC-W
- 08 505 SXF
- 08-09 505 XCF
- 09-11 530 EXC
- 08 530 EXCR
- 08 530 XCRW
- 09-10 530 XCW