Product Details
The Q4 is FMF's quiet 4-stroke slip-on — engineered to lower sound levels without giving up horsepower. Internal chambers, baffles, and proprietary multi-stage packing material drop most models below 93 dB with a max of 96 dB. Pounds lighter than stock, with a built-in spark arrestor and easy repack.
- Quiet 4-stroke slip-on — max 96 dB, most models below 93 dB
- Internal chambers and baffles with multi-stage packing
- Built-in spark arrestor
- Pounds lighter than stock
- Compatible with stock or FMF header
- Easy to repack
This is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.
Fits: Yamaha WR250F, Yamaha WR450F, Yamaha YZ250F, Yamaha YZ450F
Fitment
- Yamaha WR250F 2007–2013
- Yamaha WR450F 2007–2011
- Yamaha YZ250F 2006–2009
- Yamaha YZ450F 2006–2009
Specifications
| System Type | Silencer |
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| Technology | Intricate chambers, baffles, and proprietary multistage packing material |
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| Sound Compliance | Meets USFS and FIM World Enduro sound regulations |
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| Spark Arrestor | Included |
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| Weight vs Stock | Lighter than stock |
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| Made In | USA |
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| Street Legality | Closed-course / competition use only (CARB-restricted) |
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| Best For | Race-only / Closed-course, Off-road / Trail, Enduro |
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Verified from Garamoto’s catalog & fitment data.
