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FMF Powercore 4 — Slip-On — Yamaha YFZ450R (2009-2026), Yamaha YFZ450X (2010-2011), 4 — (see

Part # 044300
Item #357760
Fits 2 motorcycles
  • Yamaha
    • YFZ450R · 2009–2026
    • YFZ450X · 2010–2011
$399.99 $359.99 Save $40.00
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
FMF PowerCore 4 Slip-On — Yamaha YFZ450R (2009-2026), Yamaha YFZ450X (2010-2011), 4-Stroke
Product Details

The PowerCore 4 is FMF's proven 4-stroke slip-on muffler — built tough and tuned for noticeable mid-range gain. A direct bolt-on for stock head pipes, the PowerCore 4 is the go-to upgrade for riders who want a real performance bump without going to a full system.

  • 4-stroke direct slip-on muffler
  • Lightweight aluminum canister with stainless endcap
  • Tuned for mid-range power gain over stock
  • Repackable
  • Fits OEM head pipe

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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