FMF Racing FMF044475 Yamaha YZ450F 2023–2025 Stainless Steel MegaBomb Header with Mid Pipe

The ultimate power boost, the MegaBomb Headers improve performance along the bottom and mid-range powerband. Patented FMF technology combines the benefits of a longer header, with top end peformance of a shorter header.

• Effectively reduces sound output by as much as 1.5 dB

The FMF Racing MegaBomb Header with Mid Pipe is designed to improve performance through the bottom- and mid-range powerband. Its patented FMF technology combines the benefits of a longer header with the top-end performance characteristics of a shorter header. The assembly is made for specified Yamaha off-road and motocross applications.

Key Features & Performance Benefits

• Powerband Performance: Improves performance through the bottom- and mid-range powerband.
• Patented FMF Technology: Combines longer-header benefits with the top-end performance of a shorter header.
• Sound Reduction: Effectively reduces sound output by as much as 1.5 dB.
• Header and Mid Pipe Assembly: Provides the MegaBomb header configuration with a matching mid pipe.

Key Product Specifications & Technical Data

• Brand: FMF Racing
• Part Number: FMF044475
• Product Type: Powersports exhaust header
• Product Name: Yamaha YZ450F 23–25 SS MegaBomb Header w/Mid Pipe
• Material Description: Stainless steel
• Sound Output Reduction: Up to 1.5 dB
• EPA Status: Compliant
• CARB Status: Not CARB approved; acknowledgement required

What's Included in the Box

• FMF Racing MegaBomb header
• Mid pipe

Fitment

Fits 2023 Yamaha YZ450F; 2023 Yamaha YZ450F Monster Energy Yamaha Racing Edition; 2023 Yamaha YZ450FX; 2024 Yamaha WR450F; 2024 Yamaha YZ450F; 2024 Yamaha YZ450F 50th Anniversary Edition; 2024 Yamaha YZ450FX; 2025 Yamaha WR450F; 2025 Yamaha YZ450F; and 2025 Yamaha YZ450F Monster Energy Yamaha Racing Edition.

Fitments:
2023 Yamaha YZ450F Base
2023 Yamaha YZ450F Monster Energy Yamaha Racing Edition Base
2023 Yamaha YZ450FX Base
2024 Yamaha WR450F Base
2024 Yamaha YZ450F Base
2024 Yamaha YZ450F 50th Anniversary Edition Base
2024 Yamaha YZ450FX Base
2025 Yamaha WR450F Base
2025 Yamaha YZ450F Base
2025 Yamaha YZ450F Monster Energy Yamaha Racing Edition Base
2025 Yamaha YZ450FX Base
2026 Yamaha WR450F Base
2026 Yamaha YZ450FX Base

Air Freight Prohibited: false
Not Carb Approved: true
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: Compliant
Carb Acknowledgement Required: true
Regular Stock: t
Units Per Sku: 1