FMF Powercore 4 Hex Muffler | 042362 Controls front profile provides the best

front profile provides the best feel and confidence when traction matters the most

This translates into about 10 degrees less “twist” necessary to reach wide open

Yamaha YZ125X 2020 to 2022

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FMF Powercore 4 Hex Muffler | 042362 Controls front profile provides the bestWhen 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 durability all at a price that won't break the bank. Overall increase in power and torque. Durable stainless steel and aluminum construction. Space Age internal packing material for maximum longevity. Internal shape of core