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FMF Powercore 4 Hex Muffler Yamaha YZ/WR 250/X (14-19) | 044423. 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, increased horsepower and rugged durabilit... - FMF Powercore 4 Hex Muffler Yamaha YZ/WR 250/X (14-19) | 044423. | | $420.99
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FMF Powercore 4 Hex Muffler Yamaha WR250F (20-21) | 044471. 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, increased horsepower and rugged durabilit... - FMF Powercore 4 Hex Muffler Yamaha WR250F (20-21) | 044471. | | $420.99
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FMF Powercore 4 Hex Muffler Yamaha WR450F (2020) | 044462. When designing the PowerCore 4 HEX, FMF looked at top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability a... - FMF Powercore 4 Hex Muffler Yamaha WR450F (2020) | 044462. | | $420.99
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FMF Powercore 4 Muffler Yamaha YZ 250F/450F 06-09 | 044228. When designing the PowerCore4, 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, increased horsepower and rugged durability all... - FMF Powercore 4 Muffler Yamaha YZ 250F/450F 06-09 | 044228. | | $420.99
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FMF Mini Powercore 4 Muffler Yamaha TT-R110 2008-22 | 044272. The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless ... - FMF Mini Powercore 4 Muffler Yamaha TT-R110 2008-22 | 044272. | | $294.99
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FMF Mini Powercore 4 Spark Arrestor Muffler Yamaha TT-R50/E 2006-22 | 044157. The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless ... - FMF Mini Powercore 4 Spark Arrestor Muffler Yamaha TT-R50/E 2006-22 | 044157. | | $315.99
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FMF Factory 4.1 Aluminum Slip-On Silencer Yamaha 19-22 YZ250F/20-22 YZ250FX | 044453. The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology(TM) both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forwa... - FMF Factory 4.1 Aluminum Slip-On Silencer Yamaha 19-22 YZ250F/20-22 YZ250FX | 044453. | | $684.99
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FMF Powercore 4 Hex Muffler KTM/HUS 250-500 (20-23) | 045645. When designing the PowerCore 4 HEX, FMF looked at their top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durabi... - FMF Powercore 4 Hex Muffler KTM/HUS 250-500 (20-23) | 045645. | | $420.99
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FMF Powercore 4 Hex Muffler Beta 350-480 RR | 045666. When designing the PowerCore 4 HEX, FMF looked at top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability a... - FMF Powercore 4 Hex Muffler Beta 350-480 RR | 045666. | | $420.99
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