FMF Racing

FMF Racing 23-25 Yamaha YZ450F Titanium Megabomb Header w/Mid Pipe - 044476

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SKU:
FMF044476
UPC:
044476
MPN:
044476
Availability:
Regularly stocked product
MSRP: $524.99
$500.77
— You save $24.22
Current Stock: 3

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Frequently bought together:

Description

Will this FMF Megabomb header fit my motorcycle?
Confirm vehicle fitment via our extensive compatibility guide to ensure this FMF Megabomb header is the perfect match for your motorcycle.

How difficult is it to install the FMF Megabomb header?
Achieve enhanced engine performance easily; the bolt-on install type simplifies installation for immediate riding enjoyment.

The FMF 4-Stroke Megabomb Header unlocks explosive acceleration and effortless mid-range pull, boasting a usage score of 9 for Engine Performance. Its patented FMF technology effectively combines the benefits of longer and shorter headers for a broader powerband. Experience a transformation in your ride with this premium Header & Manifold.

What Owners Say

Owners and enthusiasts consistently praise the FMF Megabomb header for delivering measurable power gains, with one 500 EXC rider documenting 56 horsepower at the wheel when paired with an FMF 4.1 muffler. The header is frequently discussed in combination setups, particularly with FMF's Powerbomb and PowerCore systems, where riders appreciate the noticeable performance improvements during real-world riding. At around $500, some first-time buyers pause at the investment, especially when factoring in additional jetting requirements, though experienced riders treat it as a worthwhile upgrade. The titanium Megabomb variants receive particular attention for quality and weight savings. Among four-stroke enthusiasts seeking reliable exhaust upgrades, FMF's header systems have earned a solid reputation for delivering on their performance promises.

Key Features

  • Patented FMF technology
  • improves performance along the bottom and mid-range powerband
  • 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

Why Choose the FMF 4-Stroke Megabomb Header

Delivers explosive acceleration and effortless mid-range pull for exhilarating rides.

Achieves a broader powerband, blending low-end grunt with sustained top-end rush.

Transforms your ride with a refined exhaust note, reducing noise by up to 1.5 dB.

Provides a premium titanium construction for lightweight durability and superior heat management.

Who Is This For?

Engine Performance — 9/10
Improves bottom and mid-range powerband.

Street Performance — 8/10
Enhances powerband for street use.

Track / Autocross — 8/10
Improves performance across powerband.

Racing Competition — 8/10
Boosts performance for competitive use.

Exhaust Note / Sound — 7/10
Reduces sound output by up to 1.5 dB.

Easy DIY Install — 8/10
Bolt-on install type simplifies installation.

Important Notices

⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.

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Additional Information

CARB:
This product is not CARB Legal and not for sale in California
Clearance Item:
N
MPN:
044476
Proposition 65:
N
Case Lot Quantity:
1
Category:
Exhaust, Mufflers & Tips>Headers & Manifolds
Universal Fitment:
Y
Install Type:
Bolt-On
Product Level:
Premium Performance
Engine Performance:
9/10
Street Performance:
8/10
Track / Autocross:
8/10
Racing Competition:
8/10
Exhaust Note / Sound:
7/10
Easy DIY Install:
8/10
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