FMF Ti Megabomb Header with Mid-Pipe, Part Number 044459, for Yamaha

The science behind the Megabomb header may be our 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 revolved to produce more low end to mid range gains as well as broadening out the mid to top end power gains over stock. The Megabomb is best used for Motocross/Supercross and GNCC style trails. Used by Factory Teams, the Megabomb is the next level technology you can have today.

Upgrade your Yamaha’s exhaust performance with the FMF Ti Megabomb Header with Mid-Pipe, manufacturer part number 044459. Designed for riders seeking stronger, more usable power, this titanium header uses FMF Megabomb technology to improve engine performance across the rev range. When paired with an existing FMF Racing slip-on muffler, the Megabomb can provide gains of up to 3 horsepower while also reducing exhaust noise by as much as 1.5 decibels.

The FMF Megabomb is engineered to deliver increased low-end and mid-range torque while extending mid-to-top-end power beyond the stock header. Its performance characteristics make it well suited for motocross, Supercross, and GNCC-style trail riding. Developed with the same technology trusted by factory racing teams, this header and mid-pipe assembly provides a focused performance upgrade for compatible Yamaha models.

Fitment includes the 2020–2022 Yamaha YZ450F; 2019–2023 Yamaha YZ450FX; 2020 Yamaha WR250F; and 2020 Yamaha YZ250FX. Verify the motorcycle model and year before installation. This product is intended to work with an FMF Racing slip-on muffler for optimized results. The titanium construction helps reduce exhaust-system weight while supporting the durability required for demanding off-road and closed-course riding.

Manufacturer: FMF Racing
Brand: FMF
Manufacturer Part Number: 044459
Vendor Part Number: 79-0482

Features:

• Substantial power increases throughout the rev range
• Megabomb technology enhances low-end and mid-range performance
• Broadens mid-to-top-end power gains compared with the stock header
• Can provide up to a 3-horsepower increase when paired with an FMF Racing slip-on muffler
• Can reduce exhaust noise by up to 1.5 decibels
• Titanium header and mid-pipe construction
• Designed for motocross, Supercross, and GNCC-style trail riding
• Fits 2020–2022 Yamaha YZ450F
• Fits 2019–2023 Yamaha YZ450FX
• Fits 2020 Yamaha WR250F and YZ250FX

Fitment:
2019 Yamaha YZ450FX
2020 Yamaha WR250F
2020 Yamaha YZ250FX
2020 Yamaha YZ450F
2020 Yamaha YZ450FX
2021 Yamaha WR250F
2021 Yamaha WR450F
2021 Yamaha YZ250FX
2021 Yamaha YZ450F
2021 Yamaha YZ450FX
2022 Yamaha WR250F
2022 Yamaha WR450F
2022 Yamaha YZ250FX
2022 Yamaha YZ450F
2022 Yamaha YZ450FX
2023 Yamaha WR450F
2023 Yamaha YZ450FX