FMF Factory 4.1 Aluminum Slip-Ons for EXC 350-500
- The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to the Factory Forward Engineering - moving the muffler closer to the motor to centralize mass.
- Constructed from only aerospace grade materials that meet FMF's exacting specifications and is manufactured 100% at our Southern California factory.
- Power gains throughout the RPM range.
- Huge weight savings.
- New RTS (Rapid Tuning System).
- FMF uses the highest quality proprietary blend of alloy made especially to their standards.
- Can be used with FMF or Stock OEM Header.
- ***Notice: For Closed Course Competition Use Only. Not Intended for Street Use.
EMISSIONS NOTICE: THIS PRODUCT IS DESIGNED FOR OFF-ROAD OR RACING USE, AND THEREFORE MAY NOT COMPLY WITH CALIFORNIA OR OTHER STATES' EMISSIONS STANDARDS. IT IS UNDERSTOOD THAT BY INSTALLING THIS PRODUCT ON A MOTORCYCLE WITH AN EMISSIONS COMPLIANCE LABEL OR ONE THAT IS REGISTERED FOR STREET USE, THE MOTORCYCLE MAY NO LONGER CONFORM TO THESE STANDARDS. PLEASE CONSULT WITH LOCAL STATE/COUNTY EMISSIONS STANDARDS SHOULD ANY QUESTIONS ARISE.