Powercore 4 Hex Exhaust Silencer 21-24 Kawasaki KX 250 F X - FMF 042392
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 18+, T&Cs apply
Engineered for riders seeking race-inspired performance at an accessible price, the FMF Racing Powercore 4 HEX 042392 provides significant gains in power and torque. Built from rugged stainless steel and aluminium with a HEX-shaped body, this slip-on muffler utilises advanced Hi-Flo core technology and enhanced sonic evacuation for increased performance and durability. A removable spark arrestor is included, and the lightweight construction ensures long-term reliability for competitive and off-road environments. Features include: Closed Course Use Only, Single Slip-On configuration, High-quality aluminium construction with stainless steel midpipe and endcap, Natural finish, Hi-Flo core technology, Space Age internal packing material, Enhanced sonic evacuation, Removable screen insert spark arrestor. A quiet insert is available separately. Specifications: Item ID: 042392, Weight: 6.8 lbs, Construction: Aluminium with stainless steel midpipe and endcap, Finish: Natural, Spark Arrestor: Screen insert (included), Quiet Insert: Sold separately, Carb Warning: No.
- SKU
- 06-9950.FMF.PC4H
- Brand
- FMF Exhausts
- Availability
- In Stock (2)
Fitments (9)
| Make | Model | Year |
|---|---|---|
| KAWASAKI | KX 250F | 2021 |
| KAWASAKI | KX 250F | 2022 |
| KAWASAKI | KX 250F | 2023 |
| KAWASAKI | KX 250F | 2024 |
| KAWASAKI | KX 250X | 2021 |
| KAWASAKI | KX 250X | 2022 |
| KAWASAKI | KX 250X | 2023 |
| KAWASAKI | KX 250X | 2024 |
| KAWASAKI | KXF 250 | 2021 |
- General Product Group
- Exhaust Systems & Parts
- General Product Type
- Silencer
- Variant Id
- 299095
FULL DESCRIPTION
FMF Racing Powercore 4 HEX Exhaust Silencer
Elevate your riding experience with the FMF Racing Powercore 4 HEX, engineered to deliver race-inspired performance and a noticeable increase in power and torque. Designed for accessibility without compromising on quality, this slip-on muffler is constructed from rugged stainless steel and lightweight aluminum, featuring a distinctive HEX-shaped body.
The Powercore 4 HEX utilizes advanced Hi-Flo core technology and enhanced sonic evacuation to maximize performance and durability. It comes equipped with a removable spark arrestor for versatility and is built for long-term reliability in competitive and off-road environments.
Key Features:
- Type: Slip-On
- Configuration: Single
- Construction: High-quality aluminum body with stainless steel midpipe and endcap for a professional, natural finish.
- Hi-Flo Core Technology: Enhances airflow for increased power output.
- Internal Packing: Utilizes Space Age internal packing material for maximum longevity.
- Sonic Evacuation: Improved design boosts exhaust flow and performance.
- Spark Arrestor: Includes a removable screen insert spark arrestor.
- Quiet Insert: Available separately for sound modification.
- Notice: Closed Course Use Only
Specifications:
- Weight: 6.8 lbs
- Finish: Natural
- Spark Arrestor: Screen insert (included)
- Quiet Insert: Sold separately
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.


