FMF Racing
FMF Racing Hex Q4 Spark Arrestor Muffler — Fits 2019-2021 Yamaha YZ250F
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FMF Racing Hex Q4 Spark Arrestor Muffler — Fits 2019-2021 Yamaha YZ250F
FMF Racing

FMF Racing Hex Q4 Spark Arrestor Muffler — Fits 2019-2021 Yamaha YZ250F

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SKU: FMF044452

About FMF Racing FMF Racing engineers high-quality automotive parts and ...Read more

Price:
$449.99 $499.99
4490 ENTRIES10X
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

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About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

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Quiet Power: FMF Hex Q4 Spark Arrestor

The FMF Hex Q4 Spark Arrestor Muffler is the perfect solution for Yamaha YZ250F riders who need to balance performance with sound compliance. Engineered for the trails and off-road environments, this muffler features an integrated spark arrestor, making it legal for public lands and forest service areas. Despite its quiet operation, the Q4 does not sacrifice power, utilizing FMF's Hex geometry to maintain high-flow exhaust characteristics.

Trail-Ready Performance

  • Integrated Spark Arrestor: USFS-approved for legal trail riding.
  • Quiet Performance: Engineered to reduce sound levels without choking the engine.
  • Hex Geometry: Maximizes internal volume for efficient gas flow.
  • Durable Construction: Built to withstand long days on the trail.
  • Direct Fitment: Engineered specifically for the Yamaha YZ250F.

If you enjoy riding in diverse environments, the Q4 is an essential upgrade. It offers a deep, mellow exhaust tone that is much easier on the ears during long rides, all while providing the crisp throttle response you expect from FMF Racing. Don't let noise restrictions hold you back from your next adventure. Equip your YZ250F with the best in trail-ready performance from GGCRACING.

About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Quiet Power: FMF Hex Q4 Spark Arrestor

The FMF Hex Q4 Spark Arrestor Muffler is the perfect solution for Yamaha YZ250F riders who need to balance performance with sound compliance. Engineered for the trails and off-road environments, this muffler features an integrated spark arrestor, making it legal for public lands and forest service areas. Despite its quiet operation, the Q4 does not sacrifice power, utilizing FMF's Hex geometry to maintain high-flow exhaust characteristics.

Trail-Ready Performance

  • Integrated Spark Arrestor: USFS-approved for legal trail riding.
  • Quiet Performance: Engineered to reduce sound levels without choking the engine.
  • Hex Geometry: Maximizes internal volume for efficient gas flow.
  • Durable Construction: Built to withstand long days on the trail.
  • Direct Fitment: Engineered specifically for the Yamaha YZ250F.

If you enjoy riding in diverse environments, the Q4 is an essential upgrade. It offers a deep, mellow exhaust tone that is much easier on the ears during long rides, all while providing the crisp throttle response you expect from FMF Racing. Don't let noise restrictions hold you back from your next adventure. Equip your YZ250F with the best in trail-ready performance from GGCRACING.

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