FMF 044301 Spark Arrestor Slip-On Muffler for Yamaha - Q4 YFZ450R/X

The FMF Racing Q4 Spark Arrestor Slip-On Muffler delivers exceptional sound reduction without sacrificing performance on your Yamaha YFZ450R or YFZ450X (2009-2012). Engineered for riders who demand both power and compliance with sound regulations, this exhaust system achieves sound output as low as 92 dB while maintaining the aggressive performance FMF is known for.

Key Features:

• Unbelievable noise reduction in a high-performance package
• Approved by the Blue Ribbon Coalition and ORBA for trail and recreation use
• Compatible with FMF performance headers or stock OEM header
• Advanced modular design allows for painless repacking and maintenance
• Sound output as low as 92 dB for compliance with strict sound regulations
• USFS-approved spark arrestor included for riding in restricted areas
• Durable stainless steel and aluminum construction
• Direct slip-on installation for easy fitment

The Q4 muffler features FMF's innovative internal core design that reduces sound levels while optimizing exhaust flow for maximum horsepower and torque. The included spark arrestor makes this exhaust system trail-legal in areas requiring fire prevention equipment, giving you access to more riding areas without compromising performance.