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FMF Powercore 4 — Slip-On 4-Stroke — Yamaha WR450F/YZ450F

Part # 044222
Item #357748
Fits 2 motorcycles
  • Yamaha
    • WR450F · 2003–2006
    • YZ450F · 2003–2005
$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 WR450F (2003-2006), Yamaha YZ450F (2003-2005), 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

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.

Fitment

  • Yamaha WR450F 2003–2006
  • Yamaha YZ450F 2003–2005

Specifications

System TypeSilencer
MaterialStainless steel and aluminum
TechnologyHi-Flo Technology
Spark ArrestorRemovable (included)
Street LegalityClosed-course / competition use only (CARB-restricted)
Best ForRace-only / Closed-course, Off-road / Trail

Verified from Garamoto’s catalog & fitment data.

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