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FMF Q4 4-Stroke Quiet Series Slip-On Exhaust For Yamaha YFZ450 | 044210. Fitment:MakeModelYearYAMAHAYFZ45004-09,12-15Developed over years of championship off-road racingMax sound output 96db; most models below 93dbPounds lighter than stockUse with stock or FMF headerBuilt-in spark arrestor includedEasy to repackNot ... - FMF Q4 4-Stroke Quiet Series Slip-On Exhaust For Yamaha YFZ450 | 044210. | | $473.99
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FMF Powercore/Powercore II Silencer For Yamaha YZ490 (87-90) | 020251. Fitment:MakeModelYearYAMAHAYZ49087-90Extruded from aircraft 6060 T6 alloyCompletely repackableMaximum performance, minimum noiseFits stock pipes as well as aftermarket pipes... - FMF Powercore/Powercore II Silencer For Yamaha YZ490 (87-90) | 020251. | | $194.99
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FMF Powercore/Powercore II Silencer For Yamaha PW50 (83-09) (13-23) | 024036. Fitment:MakeModelYearYAMAHAPW5083-09,13-23Extruded from aircraft 6060 T6 alloyCompletely repackableMaximum performance, minimum noiseFits stock pipes as well as aftermarket pipes... - FMF Powercore/Powercore II Silencer For Yamaha PW50 (83-09) (13-23) | 024036. | | $189.99
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FMF Powercore 2.1 Silencer For Yamaha | 024060. Fitment:MakeModelYearYAMAHAYZ12502-21YAMAHAYZ125X20-22FMF is about moving forward....faster. The all new Titanium Powercore 2.1 silencer is proof FMF is totally committed to 2-stroke progression. We love 2-strokes, we ride 2-strokes, and ... - FMF Powercore 2.1 Silencer For Yamaha | 024060. | | $473.99
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FMF Powercore 4 Exhaust For Yamaha | 044220. Fitment:MakeModelYearYAMAHAWR250F03-06YAMAHAYZ250F03-05Constructed of stainless steel with a lightweight allow canSpace age internal packing for maximum packing lifeHi-Flo modular end capInternal shape of core uses Hi-Flo technologyEnhanced sonic eva... - FMF Powercore 4 Exhaust For Yamaha | 044220. | | $420.99
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FMF Powercore 4 Exhaust For Yamaha | 044222. Fitment:MakeModelYearYAMAHAWR450F03-06YAMAHAYZ450F03-05Constructed of stainless steel with a lightweight allow canSpace age internal packing for maximum packing lifeHi-Flo modular end capInternal shape of core uses Hi-Flo technologyEnhanced sonic eva... - FMF Powercore 4 Exhaust For Yamaha | 044222. | | $420.99
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FMF Powercore 4 Hex Muffler For Yamaha | 044395. Fitment:MakeModelYearYAMAHAYZ250F10-13 When designing the PowerCore 4 HEX, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, in... - FMF Powercore 4 Hex Muffler For Yamaha | 044395. | | $420.99
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FMF Powercore 4 Hex Muffler For Yamaha | 044396. Fitment:MakeModelYearYAMAHAYZ450F10-13 When designing the PowerCore 4 HEX, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, in... - FMF Powercore 4 Hex Muffler For Yamaha | 044396. | | $420.99
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FMF Powercore 4 Hex Muffler For Yamaha | 044404. Fitment:MakeModelYearYAMAHAWR450F16-18YAMAHAYZ450F14-17YAMAHAYZ450FX16-18 When designing the PowerCore 4 HEX, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muf... - FMF Powercore 4 Hex Muffler For Yamaha | 044404. | | $420.99
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