FMF Factory 4.1 RCT Stainless Steel Slip-On Exhaust Muffler (042403)

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.

• 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.
• Spark arrestor screen insert included
• 94dB insert included
• For closed course competition use only

Compatible Vehicles
Years	Make	Make	Notes
2024-2026	Kawasaki	KX450
2024-2026	Kawasaki	KX450X