FMF - ATV 4-Stroke Q4 Spark Arrestor Muffler

Product Code: FMFATVQ4
$329.95 $296.95 Sale
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FMF - ATV 4-Stroke Q4 Spark Arrestor Muffler

FMF is the leader in high performance quiet technology and the Q4 is the next evolution ATV exhaust.  With patents pending, this is one of our most technically advanced products.  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!

  • Developed over years of championship off-road racing
  • Max sound output 96dB; most models below 93dB
  • Pounds lighter than stock
  • Constructed from aircraft grade aluminum and high strength stainless steel
  • Use with stock or FMF header
  • Comes standard with spark arrestor
  • Easily serviced for repacking


by PowerReviews
FMF - ATV 4-Stroke Q4 Spark Arrestor Muffler

(based on 1 review)

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Reviewed by 1 customer

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light, quiet, durable. Good deal.

By travrgtr

from Edmonton, Canada

Verified Buyer


  • Durable
  • Easy To Use
  • Lightweight


    Best Uses

    • Off-Road

    Comments about FMF - ATV 4-Stroke Q4 Spark Arrestor Muffler:

    Replaced a fatboy 4 with this one. It's lighter and way quieter. It's not as bulletproof but the people around our ride area like it!

    • Motorsports:
    • Casual Rider

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