Overview Product Description Fitments Years Make Model 2009 - 2020 Yamaha YFZ 450R 4x2 2010 - 2011 Yamaha YFZ 450 X 4x2 FeaturesDeveloped over years of championship off-road racingTwin-stage core design for lower sound output and extended life of packing materialComes standard with spark arrestorFits stock and PowerBomb headerSpecs End Cap Style: Conical Riding Style: ATV Units: Each Muffler Color/Finish: Raw Style: Oval Weight: 2,95 kg (6,5 lb) Weight: 2.95 kg Base Color: Silver End Cap Material: Stainless Steel Model: Q4 Muffler Material: Aluminum Weight: 6.5 lb Pipe Material: Stainless Steel Product Name: Muffler Type: Slip-OnApproximate Package Weight & Dimensions Weight: 7.7 Height: 6.45 Length: 37.32 Width: 6.65 Product Videos Custom Field Product Reviews Write a Review Write a Review × Fmf Fmf Q4 Muffler Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
Fmf | sku: 1831-0648 Fmf Q4 HEX Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart Recommended Fmf | sku: 1831-0648 Fmf Q4 HEX Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart × OK
Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart Recommended Fmf | sku: 1831-0648 Fmf Q4 HEX Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart × OK
Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart Recommended Fmf | sku: 1831-0648 Fmf Q4 HEX Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart × OK
Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart Recommended Fmf | sku: 1831-0648 Fmf Q4 HEX Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart × OK
Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart Recommended Fmf | sku: 1831-0648 Fmf Q4 HEX Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart × OK
Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart Recommended Fmf | sku: 1831-0648 Fmf Q4 HEX Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart × OK
Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1831-0648 Fmf Q4 HEX Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1821-2039 Fmf Q4 Hex Slip-On Muffler MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1821-2051 Fmf MUFFLER Q4 HEX CRF250R MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 4320-2201 Fmf Exhaust Replacement Decal - Q4 Hex MSRP: Was: Now: $16.99 Add to Cart Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1821-2092 Fmf KAW KX450F24 HEX Q4 S/A MFLR MSRP: Was: Now: $449.99 Add to Cart Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1821-1709 Fmf Q Muffler MSRP: Was: Now: $214.99 Add to Cart Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1821-2088 Fmf Powercore Muffler MSRP: Was: Now: $199.99 Add to Cart Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1821-2089 Fmf Turbinecore Muffler MSRP: Was: Now: $219.99 Add to Cart Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart
Fmf | sku: 1860-0701 Fmf Quiet Core Spark Arrestor Insert - Q4 Hex MSRP: Was: Now: $39.99 Add to Cart