Q4 Exhaust Silencer 07-25 Honda CRF 150 R - FMF 041287

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 operation—maximum 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 design—just 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 (2007–2025)