0 - items(s)

You have no items in your shopping cart.

FMF Powercore 4 Full Muffler, Megabomb Head Pipe Honda Crf450x 2005-2017

FMF Powercore 4 Full Muffler, Megabomb Head Pipe Honda Crf450x 2005-2017

More Views


  • MSRP: $624.98
  • You Save: $85.98 (14%)
  • Brand: FMF
  • Condition: New
  • SKU: 79-3022/79-0517
  • Manufacturer Part Number: 041514/041429
  • Surface Finish: Stainless Steel
  • Warranty: 1 Year
  • Part Type: Exhaust
  • Placement on Vehicle: Rear*Front
  • Type: Full System
  • Model: Powercore 4 Muffler, Megabomb Header
  • Country of Manufacture: United States
  • Compatible Make: Honda
  • Compatible Model: Crf450x
  • Years: 2005-2017

Honda Crf450x 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 year models

In Stock Ready to Ship!

Full System Powercore 4 Muffler with Megabomb Head Pipe. This is the best Combo for the CRF450X on the market today.

Included Items:
(1) Aluminum muffler with stainless steel mid-pipe and endcap With Forest Approved Spark arrester plus
(1) Megabomb Header, Polished


The redesigned PowerBomb is a four-stroke header that incorporates FMF’s patented PowerBomb module at a precise location in the initial stage of the header. By positioning this “Bomb” at a key point in the system, increased performance and flow is achieved through the expansion and contraction of exhaust sonics through the system. Result is a flow increase of nearly 10%! The outer chamber in the Powerbomb allows the air to expand, cool and ramp back up at a higher velocity.

Additionally, the PowerBomb is a “pre-muffler” of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases). On some models, you can choose between a moto or supercross version. The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range.

Powercore 4 Muffler:

When designing the PowerCore4, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won’t break the bank.

  • Overall increase in power and torque
  • Durable stainless steel and aluminum construction
  • Advanced packing material for maximum longevity
  • Champagne color anodized can
  • Removable spark arrestor included
  • Optional 96dB quiet insert available


FMF Megabomb Header - Stainless Steel

The science behind the MegaBomb header may be FMF's greatest engineering accomplishment to date. You can bolt on a MegaBomb for as much as a 3 horsepower boost, plus the MegaBomb actually reduces noise levels by as much as 1.5dB. The FMF MegaBomb header is yet another testament to the continued dedication of FMF to developing the best performing motorcycle exhaust components. Used by Factory Teams, the MegaBomb is the next level technology you can have today.

  • Produces long header torque and short header over-rev.
  • The larger midsection creates a larger surface area for sound dissipation to reduce the sound output by as much as 1.5dB.
  • Increases output from stock motor as much as 3 HP, alone.
  • Made from premium American stainless steel material.
  • Designed with a unique midsection, comparable to the PowerBomb header, that provides improved power across the power range.
  • The unique design of the MegaBomb header allows for better low end torque similar to a long header while also improving top end power much like a short header.
  • Although the MegaBomb header offers the advantages of a long header, the design of the MegaBomb header reduces the length and the chances of getting in the way or suffering damage.

Brands & Clients

  • brand