FMF PowerCore 4 HEX Slip-On Muffler 044451 for Yamaha YZ250F and YZ250FX

When designing the PowerCore 4 HEX, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank.

The FMF PowerCore 4 HEX Slip-On Muffler, manufacturer part number 044451 and vendor part number 79-3093, is designed to provide race-inspired exhaust performance for select Yamaha four-stroke motorcycles. This high-flow muffler helps improve overall horsepower and torque while offering a durable, economical replacement for the original exhaust component. Its slip-on design is compatible with the FMF or stock OEM header for convenient installation and application flexibility.

Constructed from durable stainless steel and aluminum, the FMF PowerCore 4 HEX is built to withstand demanding riding conditions. The internal core uses FMF Hi-Flo technology to promote efficient exhaust flow, while the enhanced sonic evacuation design supports increased airflow and power delivery. Space-age internal packing material helps extend service life and maintain consistent performance over time. A removable spark arrestor is included for applicable off-road riding environments.

Fitment includes the 2019 through 2024 Yamaha YZ250F, with compatibility for the 2020 through 2023 Yamaha YZ250FX models. This FMF PowerCore 4 HEX Slip-On Muffler is a practical upgrade for riders seeking improved exhaust performance, rugged construction, and dependable trail or track usability. Verify the motorcycle year and model before ordering to ensure proper fitment.

Features:

• Improves overall horsepower and torque.
• Durable stainless steel and aluminum construction.
• Space-age internal packing material promotes extended longevity.
• Hi-Flo internal core technology supports increased exhaust flow.
• Enhanced sonic evacuation helps improve airflow and power delivery.
• Includes a removable spark arrestor.
• Compatible with FMF or stock OEM headers.
• Fits 2019-2024 Yamaha YZ250F models.
• Fits 2020-2023 Yamaha YZ250FX models.

Fitment:
2019 Yamaha YZ250F
2020 Yamaha YZ250F
2020 Yamaha YZ250FX
2021 Yamaha YZ250F
2021 Yamaha YZ250FX
2022 Yamaha YZ250F
2022 Yamaha YZ250FX
2023 Yamaha WR250F
2023 Yamaha YZ250F
2023 Yamaha YZ250FX
2024 Yamaha WR250F
2024 Yamaha YZ250F
2024 Yamaha YZ250FX
2025 Yamaha YZ250F
2025 Yamaha YZ250FX
2026 Yamaha YZ250F
2026 Yamaha YZ250FX