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- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
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Description
FMF - Q4 Hex Spark Arrestor Muffler (Beta)FMF Q4 Hex Spark Arrestor Muffler (Beta) The FMF Q4 Hex Spark Arrestor Muffler is built for riders who want quieter performance without giving up power. Designed using FMFs proven quiet core technology, it uses a system of tuned chambers, baffles, and proprietary multi stage packing to reduce sound while still improving throttle response and pull. Its rugged, reliable, and purpose built for off road riding where noise limits and spark arrestors are
FMF – Q4 Hex Spark Arrestor Muffler (Beta)
The FMF Q4 Hex Spark Arrestor Muffler is built for riders who want quieter performance without giving up power. Designed using FMF’s proven quiet-core technology, it uses a system of tuned chambers, baffles, and proprietary multi-stage packing to reduce sound while still improving throttle response and pull. It’s rugged, reliable, and purpose-built for off-road riding where noise limits and spark arrestors are mandatory.
Why We Like It
It’s one of the few mufflers that actually cuts noise without killing power. The sound is controlled, the fit is clean, and the build quality holds up to real off-road abuse. For Beta riders who want performance without excessive volume, the Q4 has been a proven favorite for years.
Why It’ll Work for You
If you ride public trails, race enduro, or just want a quieter bike, the Q4 makes things simple. It boosts power across the range, meets USFS and FIM sound requirements, includes a spark arrestor, and weighs less than stock. It installs easily and gives your Beta a smoother, more controlled feel without drawing unwanted attention.
Key Features
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Less sound with strong overall performance
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Meets USFS and FIM World Enduro sound regulations
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Power gains throughout the entire RPM range
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Spark arrestor included
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Lighter than stock mufflers
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Rugged construction for off-road endurance
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Only U.S. manufacturer offering dedicated quiet exhaust systems
- Made in the USA
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy