FMF Megabomb Stainless Steel Header and Mid Pipe 045643 for KTM, Husqvarna and GasGas 350 Models

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.

The FMF Megabomb Stainless Steel Header and Mid Pipe is engineered to increase performance throughout the powerband while complementing an existing FMF Racing slip-on muffler. Manufacturer part number 045643 and vendor part number 79-0547 identify this Megabomb assembly for select KTM, Husqvarna, and GasGas 350 off-road motorcycles. Its tuned design helps produce stronger low-end and mid-range response while extending mid-to-top-end power compared with the stock exhaust header.

Designed for motocross, Supercross, and GNCC-style trail riding, the FMF Megabomb uses proven factory-team technology to deliver substantial power increases across the usable RPM range. When paired with a compatible FMF Racing slip-on, the header can provide up to a 3-horsepower gain and may reduce exhaust noise by as much as 1.5 dB. The stainless steel construction provides a durable performance upgrade for demanding riding conditions.

Fitment: This FMF Megabomb header and mid pipe fits the 2020-2022 Husqvarna FE 350, 2020-2022 KTM 350 XCF-W, 2021-2022 GasGas EC 350F, 2023 GasGas EC 350F, and 2023 Husqvarna FE 350. Verify the motorcycle model, year, and existing FMF Racing slip-on compatibility before installation. Professional installation is recommended to ensure proper alignment, sealing, and clearance.

Features:

• Power Increase: Delivers substantial performance gains throughout the powerband.
• Low-to-Mid Range Response: Enhances low-end torque and mid-range acceleration.
• Extended Top-End Power: Broadens mid-to-top-end performance compared with the stock header.
• Megabomb Technology: Uses FMF Racing tuned-header technology developed for competition and off-road applications.
• Noise Reduction: Can reduce exhaust sound levels by as much as 1.5 dB when properly paired with a compatible FMF Racing slip-on.
• Material: Constructed from durable stainless steel for demanding motocross, Supercross, and GNCC-style trail riding.
• Fitment: Fits select 350-class KTM, Husqvarna, and GasGas models from 2020 through 2023.
• Manufacturer Part Number: FMF 045643.
• Vendor Part Number: 79-0547.

Fitment:
2020 Husqvarna FE 350
2020 KTM 350 XCF-W
2021 Gas-Gas EC 350F
2021 Husqvarna FE 350
2021 KTM 350 XCF-W
2022 Gas-Gas EC 350F
2022 Husqvarna FE 350
2022 KTM 350 XCF-W
2023 Gas-Gas EC 350F
2023 Husqvarna FE 350
2023 KTM 350 XCF-W