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FMF Q4 — Yamaha YFZ450R (2009-2026), Yamaha YFZ450X (2010-2011), 4-Stroke

Part # 044301
Item #357761
Fits 2 motorcycles
  • Yamaha
    • YFZ450R · 2009–2026
    • YFZ450X · 2010–2011
$449.99 $404.99 Save $45.00
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
FMF Q4 Slip-On — Yamaha YFZ450R (2009-2026), Yamaha YFZ450X (2010-2011), 4-Stroke
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

Fitment: 4-stroke bike specific — fits the following models:

  • Yamaha YFZ450R (2009-2026)
  • Yamaha YFZ450X (2010-2011)

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.

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