Description

The FMF Q4 HEX Muffler delivers measurable power gains across the entire RPM range while significantly reducing weight compared to stock units—meaning you’ll accelerate faster and climb better without sacrificing durability. Its advanced multi-chamber design with proprietary packing material minimizes sound output, allowing you to feel every bit of performance your engine produces. Built tough for off-road endurance and manufactured in the USA, this is a bolt-on upgrade that pays dividends whether you’re racing or trail riding.