FMF 041597 HEX Slip-On Muffler with Spark Arrestor - Q4

The FMF Q4 represents the next evolution in high-performance quiet technology for off-road exhaust systems, employing intricate chambers, baffles, and proprietary multistage packing material to deliver exceptional performance with remarkable noise reduction. This slip-on muffler features aluminum construction with a stainless steel midpipe and endcap, offering significant weight savings over stock exhaust systems.

Key Features:

• Developed over years of championship off-road racing experience
• Maximum sound output of 96dB, with most applications operating below 93dB
• Aluminum body construction with stainless steel midpipe and endcap for durability
• Built-in screen-style spark arrestor included for USFS-approved trail riding
• Compatible with stock or aftermarket FMF header pipes
• Easy to repack for long-term maintenance
• Includes quiet insert for additional sound control
• Hexagonal muffler body design for enhanced ground clearance

The FMF Q4 delivers outstanding power gains across the entire RPM range while maintaining legal sound levels for trail and off-road use. The natural aluminum finish provides a clean, professional appearance that complements any build. Note: Not legal for use in California on pollution-controlled vehicles; closed course competition use only in California.