{"product_id":"fmf-racing-fmf044400-yfz450-factory-4-1-s-o-anodized-titanium-muffler","title":"FMF Racing - FMF044400 - YFZ450 Factory 4.1 S\/O Anodized Titanium Muffler","description":"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.\n\u003cul\u003e\n  \u003cli\u003eHighest-quality proprietary blend of alloy grade titanium\u003c\/li\u003e\n  \u003cli\u003eBlue anodized titanium muffler with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eMassive power gains throughout the RPM range\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe FMF Racing Factory 4.1 RCT muffler uses FMF Resonance Chamber Technology™ internally and externally to deliver power gains throughout the RPM range. Its shorter overall length helps reduce susceptibility to crash damage, while Factory Forward Engineering positions the muffler closer to the motor to help centralize mass.\u003c\/p\u003e\u003cp\u003eConstructed from aerospace-grade materials and manufactured at FMF Racing’s Southern California factory, this muffler features a proprietary alloy-grade titanium construction, blue anodized titanium finish, and carbon end cap. The Rapid Tuning System (RTS) is included as part of the Factory 4.1 RCT design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Performance Benefits\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFMF Resonance Chamber Technology™:\u003c\/strong\u003e Incorporates internal and external resonance chamber technology.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Forward Engineering:\u003c\/strong\u003e Moves the muffler closer to the motor to help centralize mass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShorter Overall Length:\u003c\/strong\u003e Designed to be less susceptible to crash damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Gains:\u003c\/strong\u003e Delivers massive power gains throughout the RPM range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e FMF Racing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FMF044400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Powersports muffler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e YFZ450 Factory 4.1 S\/O Anodized Titanium Muffler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Proprietary blend of alloy-grade titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuffler Finish:\u003c\/strong\u003e Blue anodized titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Cap:\u003c\/strong\u003e Carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning System:\u003c\/strong\u003e Rapid Tuning System (RTS)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included in the Box\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFMF Racing YFZ450 Factory 4.1 S\/O Anodized Titanium Muffler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFits 2009–2016 Yamaha YFZ450R models and 2010–2011 Yamaha YFZ450X models, as specified: 2009 Yamaha YFZ450R; 2010 Yamaha YFZ450R; 2010 Yamaha YFZ450X; 2011 Yamaha YFZ450R; 2011 Yamaha YFZ450X; 2012 Yamaha YFZ450R; 2013 Yamaha YFZ450R; 2014 Yamaha YFZ450R; 2015 Yamaha YFZ450R; 2016 Yamaha YFZ450R.\u003c\/p\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2009 Yamaha YFZ450R Base\u003cbr\u003e\n2009 Yamaha YFZ450R SE Base\u003cbr\u003e\n2010 Yamaha YFZ450R Base\u003cbr\u003e\n2010 Yamaha YFZ450R SE Base\u003cbr\u003e\n2010 Yamaha YFZ450X Base\u003cbr\u003e\n2011 Yamaha YFZ450R Base\u003cbr\u003e\n2011 Yamaha YFZ450R SE Base\u003cbr\u003e\n2011 Yamaha YFZ450X Base\u003cbr\u003e\n2012 Yamaha YFZ450R Base\u003cbr\u003e\n2012 Yamaha YFZ450R SE Base\u003cbr\u003e\n2013 Yamaha YFZ450R Base\u003cbr\u003e\n2013 Yamaha YFZ450R SE Base\u003cbr\u003e\n2014 Yamaha YFZ450R Base\u003cbr\u003e\n2014 Yamaha YFZ450R SE Base\u003cbr\u003e\n2015 Yamaha YFZ450R Base\u003cbr\u003e\n2015 Yamaha YFZ450R SE Base\u003cbr\u003e\n2016 Yamaha YFZ450R Base\u003cbr\u003e\n2016 Yamaha YFZ450R SE Base\u003cbr\u003e\n2017 Yamaha YFZ450R Base\u003cbr\u003e\n2017 Yamaha YFZ450R SE Base\u003cbr\u003e\n2018 Yamaha YFZ450R Base\u003cbr\u003e\n2018 Yamaha YFZ450R SE Base\u003cbr\u003e\n2019 Yamaha YFZ450R Base\u003cbr\u003e\n2019 Yamaha YFZ450R SE Base\u003cbr\u003e\n2020 Yamaha YFZ450R Base\u003cbr\u003e\n2020 Yamaha YFZ450R SE Base\u003cbr\u003e\n2021 Yamaha YFZ450R Base\u003cbr\u003e\n2021 Yamaha YFZ450R SE Base\u003cbr\u003e\n2022 Yamaha YFZ450R Base\u003cbr\u003e\n2022 Yamaha YFZ450R SE Base\u003cbr\u003e\n2023 Yamaha YFZ450R Base\u003cbr\u003e\n2023 Yamaha YFZ450R SE Base\u003cbr\u003e\n2024 Yamaha YFZ450R Base\u003cbr\u003e\n2024 Yamaha YFZ450R SE Base\u003cbr\u003e\n2025 Yamaha YFZ450R Base\u003cbr\u003e\n2025 Yamaha YFZ450R SE Base\u003cbr\u003e\n2026 Yamaha YFZ450R Base\u003cbr\u003e\n2026 Yamaha YFZ450R SE Base\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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