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FMF Megabomb 4-Stroke — Yamaha YFZ450R/YFZ450X

Part # 044358
Item #357763
Fits 2 motorcycles
  • Yamaha
    • YFZ450R · 2009–2026
    • YFZ450X · 2010–2011
$374.99 $337.49 Save $37.50
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
FMF MegaBomb Header — Yamaha YFZ450R (2009-2026), Yamaha YFZ450X (2010-2011), 4-Stroke
Product Details

The MegaBomb is FMF's largest resonance-chamber header — a larger expansion volume than the PowerBomb for broader low-end and mid-range power. Bolt-on replacement for the OEM head pipe.

  • Largest FMF resonance chamber
  • Broader low-end and mid-range
  • Mandrel-bent construction
  • Direct-fit replacement for OEM head pipe
  • Pairs with FMF 4-stroke slip-ons

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 YFZ450R 2009–2026
  • Yamaha YFZ450X 2010–2011

Specifications

System TypeHeader Pipe
Noise Reduction vs StockUp to 1.5 dB
Street LegalityClosed-course only, CARB-restricted
Best ForOff-road / Trail, MX / Motocross, Race-only / Closed-course

Verified from Garamoto’s catalog & fitment data.

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