Seller notes

FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. 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-Ru...

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