FMF Powercore 4 HEX Spark Arrestor Slip-On Muffler | WR250F/YZ250F/FX (044451)
- 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
- Feature a screen-type spark arrestor that does not interrupt exhaust flow or performance
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2023-2025 | Yamaha | WR250F | |
| 2019-2026 | Yamaha | YZ250F | |
| 2024 | Yamaha | YZ250F 50th Anniversary Edition | |
| 2026 | Yamaha | YZ250F 70th Anniversary Edition | |
| 2021-2023 | Yamaha | YZ250F Monster Energy Yamaha Racing Edition | |
| 2025 | Yamaha | YZ250F Monster Energy Yamaha Racing Edition | |
| 2011-2014 | Yamaha | YZ250F Team Yamaha | |
| 2020-2026 | Yamaha | YZ250FX | |