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FMF Stainless Steel PowerBomb Header

(3 reviews)

Item: 325342

$179.99 – $271.18

Select Your Vehicle - Fitment Guaranteed

FMF Stainless Steel PowerBomb Header


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 waves as they pass through the system. The 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 as it passes through this section. Additionally, the PowerBomb also acts as a pre-muffler of sorts which helps to lower the bike's sound output by providing more sound absorbing surface area within the exhaust.

  • Only fits machines equipped with FMF muffler
  • Fabricated using alloys made to FMF's specifications
  • Pre-muffler function softens exhaust noises without compromising engine power
  • Made in the USA
Specification Details
Configuration Varies (make selection above)
Country of Origin USA
Header Construction Stainless Steel
Material Varies (make selection above)
Type Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Beta
  • 350 RR Enduro 2010-2018
  • 350 RR-S 2017
  • 350 RS Dual Sport 2012-2013
  • 390 RR Enduro 2015-2018
  • 390 RS Dual Sport 2015
  • 400 RR Enduro 2010-2014
  • 400 RS Dual Sport 2011, 2014
  • 430 RR Enduro 2015-2018
  • 430 RS Dual Sport 2015-2016
  • 450 RR Enduro 2010-2014
  • 480 RR Enduro 2015-2018
  • 498 RR Enduro 2012-2014
  • 520 RR Enduro 2010-2011
  • 520 RS Dual Sport 2011-2014
Honda
  • CRF125F 2019-2021
  • CRF125F Big Wheel 2019-2021
  • CRF230F 2003-2009, 2012-2017
  • CRF250F 2019-2021
  • CRF250L 2013-2016
  • CRF250R 4-Stroke 2004-2009
  • CRF250X 4-Stroke 2004-2009, 2012-2017
  • CRF450R 2002-2008
  • CRF450X 2005-2009, 2012-2017
  • TRX400EX FourTrax 400EX 1999
  • TRX400EX Sportrax 400EX 2000-2008
  • TRX400X Sportrax 400X 2009-2010, 2012-2014
  • TRX450ER Sportrax 450ER 2006-2014
  • TRX450R Sportrax 450R 2004-2014
  • XR600R 1985-2000
  • XR650L 1993-2009, 2012-2020
  • XR650R 2000-2005
Kawasaki
  • KFX400 2003-2006
  • KL650B Tengai 1990-1991
  • KLR600 1984-1986
  • KLR650 1987-2018
  • KLX140 2008-2020
  • KLX140G 2017-2018
  • KLX140L 2008-2020
  • KLX250S 2006, 2009-2010, 2012-2015
  • KLX250SF 2009-2010
  • KLX300R 2020-2023
  • KLX400R 2003-2004
  • KLX400SR 2003-2004
  • KLX450R 2008-2009
  • KX250 4-Stroke 2021-2022
  • KX250F 4-Stroke 2004-2016
  • KX450F 2006-2018
Suzuki
  • DR-Z400 2000-2004
  • DR-Z400S 2000-2024
  • DR-Z400SM 2005-2009, 2012-2021, 2023-2024
  • DR650SE 1997-2014
  • LT-Z400 QuadSport 400 2003-2014
  • RM-Z250 2004-2006
Yamaha
  • Raptor 700 2013-2023
  • Raptor 700R 2006-2023
  • WR250F 2001-2013
  • WR250R 2008-2020
  • WR250X 2008-2011
  • WR450F 2003-2015
  • YFZ450 ATV 2004-2009, 2012-2013
  • YFZ450R ATV 2009-2023
  • YFZ450X ATV 2010-2011
  • YZ250F 4-Stroke 2001-2009
  • YZ450F 2003-2009

Customer Reviews

Write Review

Exactly what I wanted

By   on  Verified Purchaser

It looks nice. I haven’t put it on yet as my raptor is in Costa Rica at my house. Hopefully soon. Be safe and thank you.


Seems good

By   on 

I finally banged up my stock header bad enough that I decided to put a new one on. I haven't had a good opportunity to really bash on the throttle, but it sounds much better.


No complaints

By   on 

Looks and runs outstanding with my FMF muffler on my YFZ450.


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Questions & Answers

Ask Question

Will this fit my 2015 Raptor 700R

As long as you have a FMF muffler, you should have no problem fitting the FMF header.

By Andy
Answer Question

I just purchased the mini power core 4 slip on exhaust. Wondering if this header will work with the mini power core 4? I know the header fits my bike just want to make sure the slip on will fit the header

FMF's PowerBomb headers are designed to fit any machine that's equipped with an FMF muffler, including the Mini PowerCore 4. You should have no problem fitting this header to any machine equipped with an FMF muffler listed in our fit guide.

By Staff
Answer Question

Will this work with my OEM "Stock Muffler" on my XR650R, and the photo you have only shows one pipe, my XR650R has two headers,do I have to purchase two of them??

FMF head pipes are only compatible with FMF mufflers. The headpipe diameter is larger than stock and will not properly mate to an OEM muffler. The FMF slip-ons ship with a reducer sleeve to allow installation to a factory head pipe, but it can be removed for a larger diameter slip fit to the FMF header if it is upgraded down the road. For each model you would only need to select a quantity of one at checkout. Each listing is for the correct number of headpipe(s) for the selected application.

By Staff
Answer Question

I have a 2006 Yamaha yfz 450 and it came with a titanium 4.1 fmf muffler so will this header fit it

This FMF Stainless Steel PowerBomb Header will fit any FMF slip-on muffler produced for the 2006 YFZ450 ATV. Just be certain to select your exact 2006 Yamaha YFZ450 ATV from the drop down and we guarantee it will fit.

By Staff
Answer Question

I now have the Q4 but looks like I need more than just the slip on to change exhaust on a 2017 wr250r can you please let me know what all is needed. thanks

All FMF headers are designed to work with FMF mufflers, of any kind. In other words, you don't need to purchase any additional parts to fit these header to your machine so long as it has an FMF muffler on it.

By Staff
Answer Question

Will this fit on my 2004 rmz 250

Yes, we do have an FMF PowerBomb header to fit the 2004 Suzuki RM-Z250, but as is noted in the item's description - it will only fit if your machine is equipped with an FMF RM-Z250 muffler of some type. This is due to the fact that the OEM RM-Z250 2004 header has a different diameter on its inlet than does the FMF PowerBomb header. For this reason, you must purchase (or have) an FMF muffler to go along with the header. We have an FMF Q4 for the RM-Z, FMF Factory 4.1 SL or RM-Z250 FMF PowerCore 4 muffler that are a perfect match for the header in question. With any of those mufflers, you'll have everything you need to fit the PowerBom header to your bike.

By Staff
Answer Question

How will this affect fuel consumption?

Both items will certainly increase fuel consumption, though exactly how much, is difficult to say. If you're riding an offroad bike with the original size fuel tank on it, you probably won't notice any significant difference in distance traveled when you switch to reserve or run out of fuel. Though, if you were to have a larger aftermarket tank installed, it's quite possible you may notice a slight difference in distance before running on empty. If your bike were properly tuned for fuel delivery, it's likely you won't even get near a 10% increase in fuel consumption.

By Staff
Answer Question

Will this fit a Lexx Mxe exhaust

FMF's headers are designed to work with the OEM muffler, or an FMF muffler only. Due to the different diameter at the header's outlet, they will not fit any other type of aftermarket muffler. The reason FMF mufflers fit FMF pipes is because they ship with a spacer that'll bring the muffler's inlet diameter down to the correct size that'll fit the stock header. When you later upgrade to an FMF header, you simply remove that spacer so everything fits together nicely. For these reasons, this header will not fit a Lexx Mxe muffler.

By Staff
Answer Question

I've got a 2005 yfz and I bought the gytr exhaust will this header match up

Unfortunately, no - this header won't fit anything other than the OEM or FMF muffler. This is due to the fact that FMF mufflers come with a spacer to fit the OEM head pipe. To fit that same FMF muffler to a FMF header, you simply omit that spacer to make it fit. While other aftermarket mufflers may come with a spacer, it's unlikely they're of the same inlet diameter that the FMF header requires. For that reason, it will not fit.

By Staff
Answer Question

Will this fit with a gytr slip on? I'm running the factor head pipe now on my 2007 YFZ450.

In the case of the YFZ450 ATV, the GYTR muffler will not work with the FMF header. FMF's header pipes are almost all designed to work only with FMF mufflers as they are of a different diameter than the stock pipe in order to produce as much power as possible. It is for this reason that FMF mufflers come with a spacer to accommodate the OEM head pipe. You're to remove that spacer when installing an FMF PowerBomb or MegaBomb header. For your particular needs, you may wish to go with a YFZ450 FMF Factory 4 Full Exhaust System. With that, you'll get the best possible exhaust flow and maximum power output. Just be sure to get the proper FMF YFZ450 jet kit to go with it in order to adjust fuel delivery accordingly.

By Staff
Answer Question

Will it fit with stocke Oem exhaust on 150r?

No - FMF headers are designed to work only with FMF mufflers. You would need to purchase an FMF muffler in order to have it fit this, or any other FMF header we have for sale. This is due to the fact that FMF headers almost always have a wider diameter than the stock muffler so as to permit greater exhaust gas flow and more power.

By Staff
Answer Question

Will this pipe fit my oe mid pipe with oe muff on 2007 kx450f

No, FMF headers only work with FMF mufflers. The reason for this is due to the fact that FMF's mufflers come with an adapter that's designed to fit the OEM header, but can then be removed later on when you purchase an FMF header. That is to say, the size of the outlet on FMFs' headers are different than stock and won't fit the OEM muffler. If you'd like to stick with the OEM muffler for sound output reasons, you could match that header with an FMF Q4 slip-on muffler. That particular unit is designed to be a little quieter than a full-on race system.

By Staff
Answer Question

What is the expected HP increase with one of these pipes? What should it be paired with for best performance?

2013 KTM 250 xcf-w

It's hard to say exactly what kind of power gain you can expect from any exhaust without knowing exactly how your 2013 KTM 250 XCF-W is configured (air filter, airbox mods, fueling, &etc.). With proper tuning (jet kit, Power Commander, Bazzaz Z-Fi - all of which you can find in our store), you can certainly expect an increase in power output, but most importantly, you'll notice improved throttle response and better drive off the corners.

By Staff
Answer Question

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