ALL ORDERS OVER $149.00 QUALIFY FOR FREE SHIPPING

ALL ORDERS OVER $149.00 QUALIFY FOR FREE SHIPPING

Search

Search

Go Back One Page

FMF - STAINLESS MEGABOMB HEADER - 2020+ 350 & 390 BETA 4T

SOLD OUT Notify me when this product is available:

FMF Stainless Steel Megabomb Header for 2020+ Beta 350 and 390 4T Models


The FMF Megabomb Header is engineered to deliver noticeable gains in power, throttle response, and torque across the rev range. Constructed from durable stainless steel, the Megabomb expands exhaust volume and optimizes gas flow for improved performance without excessive noise. Its patented design pre-tunes the exhaust pressure wave for a stronger bottom and midrange, while reducing sound output compared to standard headers.

Built for riders who demand reliable performance and durability, the Megabomb is equally at home on the trail, track, or open road. Compatible with FMF slip-on mufflers and designed for a precise fit using OEM mounting points.

Features:

  • Increases horsepower and torque across the rev range

  • Improves throttle response and midrange power

  • Reduces sound output by up to 1.5 dB compared to standard headers

  • Constructed from high-grade stainless steel for long-lasting durability

  • Patented expansion chamber design enhances exhaust flow and power delivery

  • Compatible with FMF slip-on mufflers

  • Designed for easy installation using stock mounts

  • Made in the USA

Fitment:

  • 2020–2025 – BETA 350 RR 4T

  • 2020–2025 – BETA 390 RR 4T

Fitment Note:  This muffler can be used with either the Stock OEM Header or a FMF header.  


For all FMF products available at
TMBR MOTO:  CLICK HERE

 


Part Number:  045667



If you have any questions or need help finding what you need for your motorcycle or your next adventure please reach out:  
EMAIL US OR CALL 208-254-2044