Join The FMF Family
Trusted for over X Years
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 042292
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 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 especially to our standards.
-See Features Tab -> Fitment for header compatibility
Spark Arrestor:Screen Insert (included)
Quiet Insert:94dB Insert (included)
|Item Id - Manual Description|
|042292 - INST SHEET KAW KX450F'09 4.1 MFLRS|
|042292 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL|