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Important – Off-Road Use Only: This exhaust is supplied for off-road / closed-course use only and is not approved for use on public roads unless clearly stated otherwise.
It is the customer’s responsibility to ensure the product is suitable and compliant for their intended use, including any applicable UK/EU noise and emissions requirements and any vehicle type-approval requirements.
Please note: Some images may be for illustrative purposes only.
-
Important – Off-Road Use Only: This exhaust is supplied for off-road / closed-course use only and is not approved for use on public roads unless clearly stated otherwise.
It is the customer’s responsibility to ensure the product is suitable and compliant for their intended use, including any applicable UK/EU noise and emissions requirements and any vehicle type-approval requirements.
Please note: Some images may be for illustrative purposes only.
Product description
The FMF Powercore 4 Silencer For Honda CRF450R 2021-2025 is part of the latest collection from FMF.
Features:
- Hi-Flo end cap boosts all-around performance
- Computer-designed and dyno-tested for every 4-stroke application
- Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power
- A stainless steel mid-pipe mates to the computer-designed rear can for lightweight durability
- Round perforated steel inner cores make for optimum flow, using hi-flo technology
- FMF's exclusive cross-weave internal packing provides longevity and maximum sound dispersion
- Elliptical aluminum can offers strategic sizing for superior performance
- Optional Quiet Core insert will provide a decrease in sound level if desired
- Includes removable spark arrestor
Specifications:
- End Cap Material: Stainless Steel
- Model: Powercore 4
- Muffler Material: Aluminum
- Pipe Material: Stainless Steel
- Product Name: Muffler
- Type: Slip-On
- Units: Each
To fit:
- HONDA CRF 450 RX 2022 American Models
- HONDA CRF 450 RX 2023 American Models
- HONDA CRF 450 RX 2024 American Models
- HONDA CRF 450 RX 2025 American Models
- HONDA CRF 450 R 2021 All Models
- HONDA CRF 450 R 2022 All Models
- HONDA CRF 450 R 2023 50th Anniversary All Models
- HONDA CRF 450 R 2023 All Models
- HONDA CRF 450 R 2024 All Models
- HONDA CRF 450 R 2025 All Models
- HONDA CRF 450 RX 2021 American Models
Manufacturer part number: 041600
View all FMF. View all Parts and spares.
Contents
Your package will include the following:
- 1 X FMF Powercore 4 Silencer For Honda CRF450R 2021-2025
To fit:
- HONDA CRF 450 RX 2021 American Models
- HONDA CRF 450 RX 2022 American Models
- HONDA CRF 450 RX 2023 American Models
- HONDA CRF 450 RX 2024 American Models
- HONDA CRF 450 RX 2025 American Models
- HONDA CRF 450 R 2021 All Models
- HONDA CRF 450 R 2022 All Models
- HONDA CRF 450 R 2023 50th Anniversary All Models
- HONDA CRF 450 R 2023 All Models
- HONDA CRF 450 R 2024 All Models
- HONDA CRF 450 R 2025 All Models

GhostBikes are now stocking a full range of FMF pipes for a wide range of off road 2 stroke and 4 stroke makes and models! Get more power from your bike with an FMF exhaust system!
FMF is one of the world's leading manufacturers of aftermarket motorcycle exhaust systems. Their exhausts are designed to increase the performance of your bike while also giving it a more aggressive sound. FMF offers a wide range of exhaust options, including full systems, slip-on mufflers, and head pipes, for various makes and models of off-road and motocross motorcycles.
Product description
The FMF Powercore 4 Silencer For Honda CRF450R 2021-2025 is part of the latest collection from FMF.
Features:
- Hi-Flo end cap boosts all-around performance
- Computer-designed and dyno-tested for every 4-stroke application
- Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power
- A stainless steel mid-pipe mates to the computer-designed rear can for lightweight durability
- Round perforated steel inner cores make for optimum flow, using hi-flo technology
- FMF's exclusive cross-weave internal packing provides longevity and maximum sound dispersion
- Elliptical aluminum can offers strategic sizing for superior performance
- Optional Quiet Core insert will provide a decrease in sound level if desired
- Includes removable spark arrestor
Specifications:
- End Cap Material: Stainless Steel
- Model: Powercore 4
- Muffler Material: Aluminum
- Pipe Material: Stainless Steel
- Product Name: Muffler
- Type: Slip-On
- Units: Each
To fit:
- HONDA CRF 450 RX 2022 American Models
- HONDA CRF 450 RX 2023 American Models
- HONDA CRF 450 RX 2024 American Models
- HONDA CRF 450 RX 2025 American Models
- HONDA CRF 450 R 2021 All Models
- HONDA CRF 450 R 2022 All Models
- HONDA CRF 450 R 2023 50th Anniversary All Models
- HONDA CRF 450 R 2023 All Models
- HONDA CRF 450 R 2024 All Models
- HONDA CRF 450 R 2025 All Models
- HONDA CRF 450 RX 2021 American Models
Manufacturer part number: 041600
View all FMF. View all Parts and spares.
Contents
Your package will include the following:
- 1 X FMF Powercore 4 Silencer For Honda CRF450R 2021-2025
To fit:
- HONDA CRF 450 RX 2021 American Models
- HONDA CRF 450 RX 2022 American Models
- HONDA CRF 450 RX 2023 American Models
- HONDA CRF 450 RX 2024 American Models
- HONDA CRF 450 RX 2025 American Models
- HONDA CRF 450 R 2021 All Models
- HONDA CRF 450 R 2022 All Models
- HONDA CRF 450 R 2023 50th Anniversary All Models
- HONDA CRF 450 R 2023 All Models
- HONDA CRF 450 R 2024 All Models
- HONDA CRF 450 R 2025 All Models

GhostBikes are now stocking a full range of FMF pipes for a wide range of off road 2 stroke and 4 stroke makes and models! Get more power from your bike with an FMF exhaust system!
FMF is one of the world's leading manufacturers of aftermarket motorcycle exhaust systems. Their exhausts are designed to increase the performance of your bike while also giving it a more aggressive sound. FMF offers a wide range of exhaust options, including full systems, slip-on mufflers, and head pipes, for various makes and models of off-road and motocross motorcycles.































