FMF Factory 4.1 RCT Titanium Muffler Yamaha WR450F 2020 | 044466 blue You are never “stuck” with

You are never “stuck” with a ratio that is not correct for your skill or track condition

Made of A7009-T6 aluminum

Both chain guide and slider contain lube within for low drag and UV protectiom to keep color and plastic like new

HydraPak brand BPA and PVC free 70 fl

Large 2-1/2" easy-to-read gauges

FMF Factory 4.1 RCT Titanium Muffler Yamaha WR450F 2020 | 044466 blue You are never “stuck” withThe 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