FMF Powerbomb Header - Stainless Steel - Motocross

FMF Powerbomb Header - Stainless Steel - Motocross
FMF Powerbomb Header - Stainless Steel - Motocross

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  • Description
  • 11 Reviews
  • 11 Questions
  • Fitment
Description Item #FMF000E
  • The FMF Powerbomb header is the result of countless hours of research and development on and off the track seeking to maximize power from the exhaust system.
  • The unique design of the FMF Powerbomb header provides room for the expansion of the exhaust gases creating a 10% increase in exhaust flow. Translation: more power.
  • The larger "bomb" section of the FMF Powerbomb header creates more surface area to increase sound dissipation and lowering the dbs. By decreasing the sound level, your bike will more easily meet the tight sound restrictions.
  • The FMF Powerbomb header is constructed out of durable Stainless Steel.

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11 Reviews
4.6 out of 5 stars
5 Star   9 4 Star   3 3 Star   1 2 Star   0 1 Star   0
denaliman
Top 500 Contributor Verified Purchaser
St. Louis, MO, USA
Durability   Ease of Installation   Performance   Power   Style  
Awesome

fit very good and i could tell a difference in the power

Randog
Verified Purchaser
Camden OH
Durability   Ease of Installation   Performance   Power   Style  
Fmf is good stuff

You can't go wrong with fmf!

yamahawr250f
Camden SC
FMF

This header works and fits great with a Powercore 4 Muffler. I recently installed it on my 2009 wr250f and it is so awesome. It really opens the bike up alot.

SleepyHead
Top 500 Contributor
Harrisburg, Pa
Great Mid-Top End Power!

The FMF Powerbomb MX header really woke up my YZ250F. The top end pulls very hard! I was skeptical if this mod would produce $170 worth of results. Out if the box the piece looks great and installation is very simple. When first used, the header turns a blueish purple, it's actually pretty neat looking. I could tell after the first fifteen minutes on the bike that I had made the right choice.

Only Con: Does not come with a heat shield, burns pants easily and quickly!

dsldug77
wisconsin
Great fit

I bought this with the FMF 4.1 exhaust. It is light weight, durable and was easy to install. There is no heat guard on this so make sure to wear long pants or riding pants to keep your leg from getting burned.

fire
lime springs, IA
Noticable power increase

was very pleased with the product. key word "was". after a year of use the header broke in half. dont think they are supposed to do that. wouldnt mind if they sent me a new one free of charge.

teambuck
Top 250 Contributor
missoula mt
Pretty sweet

once hot the header turns a golden brown which personally i think looks good. the power increase i could feel mid to top end. it feels like it will rev faster on the top. if anything it quieted it down from stock. installed on a 06 yz250f

07YFZ450Rider
Top 100 Contributor
Eureka, CA
Great mid to top end power gain

I really like the power increase it give in the mid to top end range of the motor. I ride an 07 YFZ 450. the only down side is that when the muffler gets hot, it looses its stainless finish look. but you can get a cleaner to polish it back up. easy to install.

YFZRider55
Top 500 Contributor
Tremont,IL
GREAT PURCHASE

Great header sounds good and noticable horsepower, and it looks great!

Yamahauler
Monroe, MI
FMF Powerbomb

Powerbomb works well with Power Core 4 exhaust. Good power and not too loud.

MXHI
Top 250 Contributor
HONOLULU, HI
Alright, not crazy about it

I bought the stainless instead of the ti to save money. Glad i did because i got what i paid for. did not get a major power increase but a little better than the stock. If looking to buy the powerbomb, don't waste money on the titanium, go for the stainless.

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11 Questions
Answered:   11
Not Yet:   0
dunnerlover
Q: I have an 08 YFZ450 with a 4.1 Power Core. with this powerbomb header will i have to jet my carb ?
Over 5 months ago
MotoSportExpert
Expert MotoSport Staff
Over 5 months ago
A: It would really depend on your location (altitude/temperature) and how your bike is running with the current jetting. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a local motorcycle dealership’s service department to have your bike properly jetted.
Chaz
Location: Whakatane
Q: Do you have one to fit a yzf250 2001 ?
1 year 1 month ago
MotoSportExpert
MotoSport Staff Expert
1 year 1 month ago
A: Yes Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct header for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
BigD808
Location: P Town
Q: What about a heat shield? Doesn't the header burn your leg and boot.?
Over 6 years ago
Drewski
MotoSport Staff
Over 6 years ago Location: P+RTLAND
A: FMF doesn't offer a heat shield for the powerbomb. Burning your boot is pretty common though for any head pipe that doesn't have a heat shield. You can use exhaust tape to help out, but it doesn't really look that great.
denaliman
Top 500 Contributor Top 1000 Contributor
Over 3 years ago Location: St. Louis, MO, USA
A: no not at all my bike came with a heat shield from the factory and i cant even feel the heat
SharkofPool
Q: Does this pipe require a mid pipe, does it bolt up to the muffler, which I have a FMF Powercore 4?
Over 6 years ago
james718
Expert MotoSport Staff
Over 6 years ago Location: Portland, OR
A: This will mount up to the powercore 4 slipon exhaust. The mid pipe that came with the slipon will be all you need.
denaliman
Top 500 Contributor Top 1000 Contributor
Over 3 years ago Location: St. Louis, MO, USA
A: depends what bike i have a 2003 yamaha wr450 and mine fit right into the muffler
wright37
Q: Does the power bomb header work with any exhaust?
Over 6 years ago
james718
MotoSport Staff Expert
Over 6 years ago Location: Portland, OR
A: FMF will not guarantee fitment of their power bomb header on anything but FMF Exhaust systems.
alpha
Q: ?
Over 7 years ago
this is the only powerbomb header besides the titanium header that i can get for a 2009 wr250f?
Drewski
MotoSport Staff
Over 7 years ago Location: P+RTLAND
A: Yep, FMF only makes this header in Titanium or Stainless.
Chlo
Location: Pittsburgh
Q: Will pre-engine changes be needed once I go from a stock header to a powerbomb header?
Over 7 years ago
james718
MotoSport Staff Expert
Over 7 years ago Location: Portland, OR
A: If you are mounting this on a stock exhaust their will be no guarantee of correct fitment. FMF will only guarantee fitment only on their exhaust systems.

And to answer your question there's nothing you'll need to do to the engine before installation. Please take serious note to my first comment about fitting this head pipe to anything other than FMF exhaust systems.
skippadydoda
Q: What is the difference between the Motocross and Supercross?
Over 7 years ago
what is the difference between the motocross version of this header and the supercross version?
JesseC
MotoSport Staff
Over 7 years ago Location: Tualatin
A: The SX version gives you a little more low to mid power and the MX version is better for mid to top end power.
RT495
Q: Will it fit the fmf powercore IV exhaust?
Over 7 years ago
james718
Expert MotoSport Staff
Over 7 years ago
A: FMF does claim their exhaust components are compatible with most of their line. If your Powercore IV is a slip-on and worked with your stock header, than i don't see any reason the FMF powerbomb wouldn't mount up. They did engineer it around the stock header for fitment.
tazz
Q: How much more power will it give you if you have a FMF Q4?
Over 7 years ago
james718
MotoSport Staff Expert
Over 7 years ago
A: You won't really notice much power gain as performance gain. FMF designed the powerbomb header to add more volume to the exhaust system without actually making it longer. That will give the bike more grunt or better low end response. the performance will be gradual through the mid range.
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Fitment
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