Q4 Hex Exhaust Silencer 21-26 Honda CRF 450 R RX - FMF 041601
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The FMF Q4 HEX S/A 041601 is a slip-on exhaust silencer engineered for superior off-road performance while minimizing sound emissions. It features sophisticated chambers, baffles, and advanced multi-stage packing materials for robust power gains across the entire RPM range. This silencer meets USFS and FIM World Enduro noise regulations, includes a spark arrestor and quiet insert, and is constructed for rugged off-road durability. The system has a lightweight aluminium body with a natural finish, a stainless steel midpipe, and a stainless steel endcap. Manufactured in the USA with high-grade materials, its proprietary packing enhances long-term performance. Installation is a slip-on type. Item ID: 041601. Configuration: Single. Carb Warning: No.
- SKU
- 06-9939.FMF.Q4H
- Brand
- FMF Exhausts
- Availability
- In Stock (3)
Fitments (12)
| Make | Model | Year |
|---|---|---|
| HONDA | CRF 450R | 2021 |
| HONDA | CRF 450R | 2022 |
| HONDA | CRF 450R | 2023 |
| HONDA | CRF 450R | 2024 |
| HONDA | CRF 450R | 2025 |
| HONDA | CRF 450R | 2026 |
| HONDA | CRF 450RX | 2021 |
| HONDA | CRF 450RX | 2022 |
| HONDA | CRF 450RX | 2023 |
| HONDA | CRF 450RX | 2024 |
| HONDA | CRF 450RX | 2025 |
| HONDA | CRF 450RX | 2026 |
- General Product Group
- Exhaust Systems & Parts
- General Product Type
- Silencer
- Variant Id
- 299083
FULL DESCRIPTION
FMF Q4 Hex Exhaust Silencer
The FMF Q4 HEX S/A exhaust system is engineered for riders demanding superior off-road performance while keeping sound emissions to a minimum. This slip-on muffler utilises sophisticated chambers, baffles, and advanced multi-stage packing materials to deliver robust power gains across the entire RPM range, all while meeting strict USFS and FIM World Enduro noise regulations. Its lightweight, durable construction makes it ideal for enduring the rigours of off-road racing, and it includes a spark arrestor for rider safety and regulatory compliance. Designed and manufactured in the USA, the Q4 HEX sets the benchmark for quiet, high-performance exhaust technology.
Key Features:
- Meets USFS and FIM World Enduro sound regulations for legal compliance.
- Noticeably lighter than OEM exhaust systems.
- Delivers increased power and torque across the full RPM range.
- Includes a spark arrestor and quiet insert.
- Constructed for rugged off-road durability.
- Manufactured in the USA with high-grade materials.
- Proprietary packing materials enhance long-term performance.
- Slip-on installation for ease of fitment.
Specifications:
- Type: Slip-On
- Configuration: Single
- Construction: Aluminium body
- Finish: Natural
- Midpipe: Stainless Steel
- Endcap: Stainless Steel
- Spark Arrestor: Screen Insert (included)
- Quiet Insert: Included
QUESTIONS? JUST ASK
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
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