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Quiet Power for Trail and Track

The FMF Racing Hex Q4 Spark Arrestor Muffler is the perfect solution for Kawasaki KX450, KX450F, and KX450X riders who need to meet sound regulations without compromising on performance. Featuring a built-in spark arrestor, this muffler is essential for off-road riding in areas requiring USFS-approved equipment.

Key Benefits of the Q4 S/A

• Sound Compliance: Engineered to keep decibel levels down while maintaining maximum flow.
• Spark Arrestor Included: USFS-approved for legal trail riding.
• Hex Technology: Maximizes internal volume for better power and sound control.
• Durable Build: High-quality construction for long-lasting performance.
• Weight Savings: Lighter than the stock exhaust system.

Don't let noise restrictions slow you down. The Q4 S/A utilizes advanced chamber technology to dampen sound while actually improving the power curve of your 450cc engine. It provides a smooth, linear power delivery that is perfect for technical trail riding and long days on the track. The Hex shape allows for a larger internal volume, which is critical for maintaining performance while keeping the exhaust quiet. Whether you are racing enduro or exploring local trails, the Q4 S/A is the gold standard for quiet, high-performance exhaust systems. Elevate your riding experience with quality parts from GGCRACING.