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-Developed over years of championship off-road racing
The Factory Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band
This is used for a single sided exhaust system except part # 014553
works and fits FMF or stock
FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) W/ CARBON CAP 041611 YAMAHA-PW50-1999 -Developed over years of championshipThe 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
