Powercore 4 Hex Exhaust Silencer 18-26 Yamaha WR YZ 450 F FX - FMF 044441
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 18+, T&Cs apply
The FMF Racing Powercore 4 HEX 044441 slip-on muffler provides gains in torque and horsepower. It features a durable aluminum and stainless steel construction with Hi-Flo core technology and premium packing materials for maximum durability and performance. This muffler offers an overall improvement in power and torque, with enhanced sonic evacuation for increased power output. It has a lightweight design weighing 5.3 lbs and a natural finish. Includes a removable spark arrestor screen insert. Sold separately: Quiet Insert. Specifications: Item ID 044441, Type Slip-On, Configuration Single, Construction Aluminum, Finish Natural, Midpipe Stainless steel, Endcap Stainless steel, Spark Arrestor Screen insert, Carb Warning No. Closed course use only.
- SKU
- 06-1784.SIL.P4H
- Brand
- FMF Exhausts
- Availability
- In Stock (4)
Fitments (28)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 450F | 2019 |
| YAMAHA | WR 450F | 2020 |
| YAMAHA | WR 450F | 2021 |
| YAMAHA | WR 450F | 2022 |
| YAMAHA | WR 450F | 2023 |
| YAMAHA | WR 450F | 2024 |
| YAMAHA | WRF 450 | 2019 |
| YAMAHA | YZ 450F | 2018 |
| YAMAHA | YZ 450F | 2019 |
| YAMAHA | YZ 450F | 2020 |
| YAMAHA | YZ 450F | 2021 |
| YAMAHA | YZ 450F | 2022 |
| YAMAHA | YZ 450F | 2023 |
| YAMAHA | YZ 450F | 2024 |
| YAMAHA | YZ 450F | 2025 |
| YAMAHA | YZ 450F | 2026 |
| YAMAHA | YZ 450FX | 2019 |
| YAMAHA | YZ 450FX | 2020 |
| YAMAHA | YZ 450FX | 2021 |
| YAMAHA | YZ 450FX | 2022 |
| YAMAHA | YZ 450FX | 2023 |
| YAMAHA | YZ 450FX | 2024 |
| YAMAHA | YZ 450FX | 2025 |
| YAMAHA | YZF 450 | 2018 |
| YAMAHA | YZF 450 | 2019 |
| YAMAHA | YZF 450 | 2020 |
| YAMAHA | YZF X 450 | 2019 |
| YAMAHA | YZF X 450 | 2020 |
- General Product Group
- Exhaust Systems & Parts
- General Product Type
- Silencer
- Variant Id
- 209412
FULL DESCRIPTION
FMF Racing Powercore 4 HEX Exhaust Silencer
Enhance your motorcycle's performance with the FMF Racing Powercore 4 HEX 044441 slip-on muffler. This exhaust system is designed to deliver noticeable gains in torque and horsepower, providing a competitive edge for riders. Constructed from durable aluminum and stainless steel, it offers exceptional value and race-inspired performance.
Key Features:
- Improves overall power and torque for a more responsive ride.
- Constructed with durable stainless steel and aluminum for longevity.
- Features a Hi-Flo core design to improve exhaust flow efficiency.
- Utilizes premium packing materials for extended durability.
- Engineered for enhanced sonic evacuation to boost power output.
- Includes a removable spark arrestor (screen insert) for off-road use.
- Lightweight design with a natural finish for a sleek appearance.
- Closed course use only.
Specifications:
- Type: Slip-On
- Configuration: Single
- Construction Material: Aluminum
- Finish: Natural
- Midpipe Material: Stainless Steel
- Endcap Material: Stainless Steel
- Spark Arrestor: Screen insert included
- Quiet Insert: Sold separately
- Weight: 5.3 lbs
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
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.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.


