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FMF Racing Factory 4.1 Full System for 2009-19 Yamaha YFZ450R - 044401 feed-mpn-04-0315 1997 Arctic Cat Cougar 550FMF Racing Factory 4. 1 Full Exhaust System Part Number: 044401 Finish: Anodized Titanium with Carbon Fiber End Cap Titanium canister shape and size is lighter and makes it more performance optimizing Front and rear end cap designs developed to enhance fit, function and style Fixed, specific mounting brackets for slip ons and full systems Excellent fit, stainless steel finish and attention to detail Includes Stainless Steel Powerbomb Header Items