The FMF Q has always been in a league of its’ own and our latest Q4 is the most significant upgrade to date. You don’t need to settle for a plugged up moto muffler hampered by an insert when you can have a compliant muffler engineered for performance.
Notice: For Closed Course Competition Use Only. Not Intended for Street Use.
Developed over years of championship off-road racing
- Max Sound output 96dB; most models below 93dB
- Constructed from aircraft grade aluminum and high strength stainless steel
- Use with stock or FMF header
- Removable spark arrestor included
- Type: Slip-On
- Configuration: Single
- Const: Aluminum
- Finish: Natural
- Midpipe: Stainless Steel
- Endcap: Stainless Steel
- Spark Arrestor: Screen Insert (included)
- Quiet Insert: 94dB Insert (included)