FMF 043380 Q4 Spark Arrestor Slip-On Muffler with Stainless Midpipe

The FMF 043380 Q4 Slip-On Muffler represents the next evolution in high-performance quiet exhaust technology. Designed for riders who demand both power and stealth, this aluminum muffler delivers exceptional performance while meeting strict sound regulations.

Advanced Quiet Technology:

• Intricate internal chambers and baffles reduce sound output without sacrificing power
• Proprietary multistage packing material optimizes exhaust flow
• Meets FIM World Enduro sound regulations
• Sound output as low as 92 dB with quiet insert
• Approved by Blue Ribbon Coalition and ORBA

Performance Features:

• Power gains throughout the entire RPM range
• Aluminum construction with natural finish for lightweight durability
• Stainless steel midpipe and end cap resist corrosion
• Weighs only 6.1 lbs - significantly lighter than stock
• Rugged design built for off-road endurance

Included Components:

• Spark arrestor screen insert for legal trail riding
• Quiet insert for additional sound reduction
• Compatible with FMF or stock header systems

Made in the USA by FMF Racing, the leader in high-performance exhaust systems. This slip-on muffler delivers the power you feel, not the noise you hear. Note: Intended for closed course use only.