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FMF Factory Fatty Expansion Chamber Pipe — Yamaha YZ125 / YZ125X 2022–2026
FMF Factory Fatty Expansion Chamber Pipe — Yamaha YZ125 / YZ125X 2022–2026
Regular price
$287.99 USD
Regular price
Sale price
$287.99 USD
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US Based
Laramie, Wyoming
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A tuned expansion chamber that reshapes the power curve for a broader, more usable spread of power.
Fits: Yamaha YZ125 / YZ125X 2022–2026.
Why riders pick it:
- Precision-tuned expansion chamber reshapes the power curve for a broader spread of usable power
- Works with your stock silencer or a matching FMF silencer
- Direct bolt-on installation, no tuning required
⚠️ For closed-course competition / off-road use only — not legal for street use in some states. Confirm your local regulations.
Not sure it fits your bike? Send us your year and model and we'll confirm.
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