Engine › Q4 HEX MFLR KAW Image 1 of 1 Q4 HEX MFLR KAW $449.99 Developed over years of championship off-road racingMax sound output 96db; most models below 93dbPounds lighter than stockUse with stock or FMF headerBuilt-in spark arrestor includedEasy to repackNot legal for use in California on pollution controlled vehicles, race use only in California - waiver available Quantity: Purchase Added! Developed over years of championship off-road racingMax sound output 96db; most models below 93dbPounds lighter than stockUse with stock or FMF headerBuilt-in spark arrestor includedEasy to repackNot legal for use in California on pollution controlled vehicles, race use only in California - waiver available