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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
3D multi-layer
Reduces sound output with minimal increase in back pressure
35-40% lighter than aluminum alternatives
Additional side foam padding for additional coverage
FMF Factory 4.1 Stainless Slip-On Exhaust Yamaha YZ450F(X) WR450F | 044443 transportation 3D multi-layerThe 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
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