FMF Megabomb Header Stainless Steel Beta 350 / 390 RR (2020-2025) 045664

FMF Megabomb Header Stainless Steel Beta 350 / 390 RR (2020-2025) 045664

The FMF Megabomb header represents a pinnacle of exhaust engineering, offering a massive performance upgrade that rivals expensive internal engine work. By simply bolting on this header, riders can see a power increase of up to 3hp, providing the competitive edge needed to pull holeshots and dominate the competition. If you are looking to Buy FMF Megabomb Header for your Beta, you are investing in a patented design that mimics the low-end torque of a long header while maintaining the high-RPM over-rev of a short header.

Constructed from high-quality, lightweight stainless steel, the Megabomb is the next evolution of FMF's Powerbomb technology. This Beta 350 RR replacement header not only boosts output across the entire power band but also acts as a "pre-muffler" to reduce exhaust noise by as much as 1.5dB. Whether you are performing a full FMF Beta 390 service kit upgrade or just looking to go faster with a simple bolt-on part, this stainless steel header delivers professional-grade durability and power everywhere you need it.

Top Features FMF Megabomb Header Stainless Steel Beta 350 / 390 RR (2020-2025) 045664

• Increases horsepower output from the stock motor by as much as 3hp.
• Patented Megabomb technology reduces noise levels by up to 1.5dB.
• Constructed of extremely lightweight and durable stainless steel.
• Produces substantial power increases throughout the entire RPM range.
• Provides the unique combination of long header torque and short header over-rev.
• Designed to fit perfectly with both FMF silencers and stock OEM mufflers.

Fitment List

• 2021, 2025 Beta 350 RR 4T
• 2021, 2025 Beta 390 RR 4T
• 2020, 2023-2024 Beta 350 RR / 390 RR

FAQ

Q: Will this FMF Megabomb Header fit my 2024 Beta 390 RR?
Yes, the 045664 header is designed specifically for the Beta 350 and 390 RR models, including the 2024 model year.

Q: Do I need to remap my fuel injection after installing the Megabomb?
While the Megabomb is designed to work with stock settings, a fuel tuner or ECU remap can help you maximize the 3hp gains and ensure your Beta 4-stroke runs at peak efficiency.

Q: Is the stainless steel version as light as the titanium version?
Stainless steel is slightly heavier than titanium but offers exceptional durability and impact resistance at a more economical price point, while still being lighter than the stock OEM header.

Step up to the next level of 4-stroke performance. Order your FMF Megabomb today and feel the power gains on your very first ride.

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