FMF
Back to Exhaust

FMF Megabomb — Header 4-Stroke — Beta 430RR/480RR

Part # 045665
Item #357879
Fits 2 motorcycles
  • Beta
    • 430RR · 2020–2026
    • 480RR · 2020–2026
$374.99 $337.49 Save $37.50
/
Shipping calculated at checkout.
  • In stock, ready to ship
  • Backordered, shipping soon
  • Flat $10 U.S. shipping, free over $100
  • Ships from one of three U.S. warehouses
  • Secure checkout
WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
FMF Stainless MegaBomb Header — Beta 430RR (2020-2026), Beta 480RR (2020-2026), 4-Stroke
Product Details

The MegaBomb is FMF's largest resonance-chamber header — a larger expansion volume than the PowerBomb for even broader low-end and mid-range gains. Stainless steel version offers rugged durability at a friendlier price than the titanium MegaBomb.

  • Larger resonance chamber than PowerBomb — bigger low-mid bump
  • Stainless steel construction
  • Direct-fit replacement for OEM head pipe
  • Pairs with FMF 4-stroke slip-ons
  • Mandrel-bent for smooth flow

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

  • Beta 430RR 2020–2026
  • Beta 480RR 2020–2026

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.

You may also like