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FMF MegaBomb Plus Header Husqvarna / KTM / Gas Gas 350cc 2019-2023

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This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

FMF MegaBomb Plus Header Husqvarna / KTM / Gas Gas 350cc

The science behind the FMF Megabomb Plus header may be FMF's greatest engineering accomplishment to date. You can bolt on a Megabomb with an existing FMF Racing slip on for as much as a 3hp boost, plus the Megabomb actually reduces noises levels by as much as 1.5dB. The Megabomb technology is designed to produce more low end to mid range gains as well as broadening out the mid to top end power gains over stock. The FMF Megabomb is best used for Motocross/Supercross and GNCC style trails. Used by multiple Factory Teams, the Megabomb Header delivers next level technology you can have today.


  • Megabomb Plus features updated Resonance Chamber Technology for better performance compared to the original Megabomb
  • Less susceptible to crash damage than longer headers
  • Produces long header torque and short header over-rev
  • Reduces sound output as much as 1.5 dB
  • Increases output from stock motor as much as 3 hp
  • Compatible with FMF muffler
  • 100% made in the USA


  • Stainless Steel 2.4 lbs
  • Titanium 1.4 lbs
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This product is vehicle specific. Click here to select your vehicle to ensure fitment.

This Product Fits:

Gas Gas
EX 350F 2021, 2022, 2023
FC350 2019, 2020, 2021, 2022
FX350 2019, 2020, 2021, 2022
350 SX-F 2019, 2020, 2021, 2022
350 XC-F 2019, 2020, 2021, 2022
350 XC-F Kailub Russell 2021

This item is also available for 16 other models:

Gas Gas
EX 250F 2021-2023
EX 450F 2021-2023
MC 250F 2021-2023
MC 450F 2021-2023
FC250 2019-2022
FC450 2019-2022
FC450 Rockstar Edition 2018-2021
FS450 2021-2022
FX450 2019-2022
250 SX-F 2019-2022
250 SX-F Factory Edition 2021
250 XC-F 2019-2022
450 SMR 2021-2022
450 SX-F 2019-2022
450 SX-F Factory Edition 2018-2021
450 XC-F 2019-2022
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Stainless Steel Item # 1648994 Store SKU Manufacturer Product # 045622 Availability In Stock: Ships within 24 hours
Product Style Titanium Item # 1648993 Store SKU Manufacturer Product # 045623 Availability In Stock: Ships within 24 hours
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