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FMF Q4 Hex S/A Muffler Part #: 437864 Manufacturer Part #: 045646 Overview of FMF Q4 Hex S/A Muffler The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you don’t need to hear the power, just feel the power! Less sound equals more ground Meets USFS and FIM World Enduro sound regulations Power gains throughout the entire rpm range Spark arrestor included Pounds lighter than stock Rugged design for off-road endurance MADE IN THE USA Specs Color Silv...

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