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The Factory 4.1 RCT silencer is constructed only from aerospace-grade materials that meet FMF's exacting specifications and is manufactured 100% at their Southern California factory.\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eMassive Power gains throughout the RPM range\u003c\/li\u003e\n\t\u003cli\u003eHuge weight savings\u003c\/li\u003e\n\t\u003cli\u003eRapid Tuning System (RTS)\u003c\/li\u003e\n\t\u003cli\u003eFMF uses the highest quality proprietary blend of alloy grade titanium made specifically to their standards\u003c\/li\u003e\n\t\u003cli\u003eCan be used with FMF or stock OEM header pipe\/s\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003eWe recommend all motorcycle parts are fitted and tested by qualified professionals.\u003cbr\u003e\nIf you are unsure about the part choice for your bike, please contact us before purchase.\u003c\/p\u003e\n","brand":"FMF","offers":[{"title":"*4.1 S\/S Single CRF450R 17-20 Slip on w\/carbon Cap 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