FMF Factory 4.1 RCT Slip-On Exhaust for Yamaha YZ450F / YZ450FX / WR450F Models- Blue Anodized - 044445 2013 KTM 85 SX (17/14) 1999 Arctic Cat ZR 600

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FMF Factory 4.1 RCT Slip-On Exhaust for Yamaha YZ450F / YZ450FX / WR450F Models- Blue Anodized - 044445 2013 KTM 85 SX (17/14) 1999 Arctic Cat ZR 600FMF Racing Factory 4. 1 RCT Slip On Exhaust Part Number: 044445 Muffler: Anodized TitaniumEnd Cap: Carbon Fiber Spark Arrestor: Screen Insert (included) Constructed from only aerospace grade materials that meets FMF exact specifications Shorter overall length is less susceptible to crash damage Shorter length design moves the muffler closer to the motor and improves centralize mass Greater canister volume helps reduce sound and increases packing life