Description
The FMF Q4 041287 sets the standard for high performance off-road exhausts, delivering powerful output while maintaining impressively low sound levels. Developed through years of championship racing, the Q4 uses advanced internal chambers, sophisticated baffles, and proprietary multi-stage packing materials to provide class-leading noise reduction without sacrificing performance. Constructed from premium aircraft-grade aluminium and durable stainless steel, this slip-on system is designed for reliable performance in rugged conditions and comes equipped with a removable spark arrestor for added versatility.
Features
- Designed for quiet operationÑmaximum sound output 96dB; most applications test below 93dB
- Proprietary chambered design enhances power without excessive noise
- Aircraft-grade aluminium construction with high strength stainless steel components
- Can be used with FMF or stock OEM header
- Removable spark arrestor included for increased safety and compliance
- Developed from extensive off-road racing experience
- Lightweight designÑjust 4.8 lbs
- Suitable for closed course use only
- Includes quiet insert for further sound reduction
Specifications
- Item ID: 041287
- Type: Slip-On
- Configuration: Single
- Construction: Aluminum
- Finish: Natural
- Midpipe: Stainless Steel
- Endcap: Stainless Steel
- Spark Arrestor: Screen Insert (included)
- Quiet Insert: Included
- Weight: 4.8 lbs
Vehicle Fitment
HONDA
- CRF150R (2007Ð2025)

