FMF 041617 HEX Slip-On Muffler with Spark Arrestor - Q4

The FMF Q4 HEX represents the next evolution in high-performance quiet exhaust technology for off-road motorcycles. This slip-on muffler employs intricate chambers, baffles, and proprietary multistage packing material to deliver exceptional power while maintaining compliant sound levels.

Key Features:

• Gray anodized aluminum canister construction
• Stainless steel midpipe and endcap
• Screen insert spark arrestor included
• 94dB quiet insert included
• Meets USFS and FIM World Enduro sound regulations
• Power gains throughout the entire RPM range
• Pounds lighter than stock exhaust
• Rugged design built for off-road endurance
• Made in the USA

The Q4 utilizes a series of internal baffles, chambers, and sound-absorbing materials to accelerate exhaust flow while keeping noise levels low, with most machines coming in well below 96 decibels. This muffler is designed for closed course use only.