FMF PowerCore 4 HEX Muffler - 044423 Yamaha YZ 250 / WR 250 2014-2019 Brand_Pro Design Smaller lighter weight retainers which

Smaller lighter weight retainers which drastically reduce the valve weight creating a quicker revving and smoother motion than comparable dual or single valve springs

Blue crank bearing (1

Hand assembled in the U

Bore Size 44

Roll-top with larger 1

FMF PowerCore 4 HEX Muffler - 044423 Yamaha YZ 250 / WR 250 2014-2019 Brand_Pro Design Smaller lighter weight retainers whichFeatures Overall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum longevity Internal shape of core uses Hi Flo technology Enhanced sonic evacuation provides for higher flow and increased power Includes removable spark arrestor Specs End Cap Material Stainless Steel Units Each Product Name Muffler Pipe Material Stainless Steel Riding Style Off Road Type Slip On Muffler Color