Check the listing for details. FMF PowerCore4 Slip-On Exhaust Pipe Yamaha YZ250FX 20-24, YZ250F 19-24 - 044451. Color: Black, Condition: New. Listed at 399.00 USD. 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 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 uses Hi-Flo technology.-Enhanced sonic evacuation provides for higher flow and increased power.-Includes removable spark arrestor.Item ID:044451Type:Slip-OnConfiguration:SingleConst:AluminumFinish:ANODIZED BLACKMidpipe:Stainless SteelEndcap:Stainless SteelSpark Arrestor:Screen Insert (included)Carb Warning:noQuiet Insert:Quiet Insert (sold separately)APPLICATIONSMakeModelYearYAMAHAYZ250F19-24YAMAHAYZ250FX20-24