Powercore 4 Hex Exhaust Silencer 21-24 Kawasaki KX 250 F X - FMF 042392
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)
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


