FMF Factory 4.1 RCT MegaBomb Exhaust System KTM/Husqvarna 500/501 20-21
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 with Carbon Fiber End Cap
Massive Power gains throughout the RPM range.
Huge weight savings
New RTS (Rapid Tuning System)
FMF uses the highest quality proprietary blend stainless steel made especially to our standards.
KTM 500 XCF-W/EXC-F 20-21
Husqvarna FE501 20-21
For competition use only.