
Images may differ
Some product images are generic and supplied by the manufacturer. Always check the product title, specifications and fitment information before ordering.
| SKU | FMF045666 |
| MPN | 045666 |
| GTIN | 045666 |
| Certifications | None |
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020,2023-2024 | Beta | 350 Rr | |
| 2020,2023-2025 | Beta | 350 Rr Race Edition | |
| 2020,2023 | Beta | 350 Rr S | |
| 2025 | Beta | 350 Rr X Pro | |
| 2020,2023-2024 | Beta | 390 Rr | |
| 2020,2025 | Beta | 390 Rr Race Edition | |
| 2020,2022 | Beta | 390 Rr S | |
| 2020,2023-2024 | Beta | 430 Rr | |
| 2020,2022-2025 | Beta | 430 Rr Race Edition | |
| 2020,2022-2023 | Beta | 430 Rr S | |
| 2025 | Beta | 430 Rr X Pro | |
| 2020,2023-2024 | Beta | 480 Rr | |
| 2025 | Beta | 480 Rr X Pro |
Experience superior performance and durability with the FMF Racing Beta Powercore 4 Hex Muffler, designed specifically for the Beta 350, 390, 430, and 480RR models from 2020 to 2024. Crafted with precision engineering, this muffler delivers an enhanced exhaust flow, amplifying throttle response and maximizing your bike's power output for a thrilling ride.
The Powercore 4 features a distinctive hexagon-shaped design that not only stands out visually but also provides notable weight savings without compromising strength. Its innovative construction ensures optimal sound reduction while maintaining that aggressive FMF tone that enthusiasts love. Installation is straightforward, allowing you to upgrade your exhaust quickly and get back on the trail or track.
Built to endure the rigors of off-road conditions, the FMF Powercore 4 Hex Muffler combines style, performance, and reliability. Whether you're upgrading your stock exhaust or replacing worn components, this muffler is a must-have for riders looking to elevate their Beta motocross experience.
The Powercore 4 features a distinctive hexagon-shaped design that not only stands out visually but also provides notable weight savings without compromising strength. Its innovative construction ensures optimal sound reduction while maintaining that aggressive FMF tone that enthusiasts love. Installation is straightforward, allowing you to upgrade your exhaust quickly and get back on the trail or track.
Built to endure the rigors of off-road conditions, the FMF Powercore 4 Hex Muffler combines style, performance, and reliability. Whether you're upgrading your stock exhaust or replacing worn components, this muffler is a must-have for riders looking to elevate their Beta motocross experience.
Customer reviews
Based on 160 reviews
Netherlands owned and operated
We want to deliver parts fast, efficiently, and with ease. Our mission is to continue to provide just that. To provide large inventory and efficient logistics while maintaining great service. As well as a community with like-minded auto enthusiasts that share the same passion as we do.

















