FMF Powerbomb Header

[400exKy1e]

What do u guys think? are they any good? was just wonderin cus i already have a FMF Powercore IV slip on and thught i should stick with the same brand. thanks!

[atvracr350]

i don't know anything bought your question but i was wonderin is your name kyle? Cause if it is that is gonna be weird. We both have the first name kyle and a red 2000 400ex.

[400exKy1e]

heh yup! :D

[TC426EX]

Before you make the decision make sure that headpipe will fit that slip on. Most pipe companies make different silencers for their full systems than their slip ons. Oftentimes the full pipes have a larger diameter over stock requiring a different mount on the silencer. If it works, get it, but make sure first...

[400exKy1e]

thanks for the tip! is there gona really be a power difference between my FMF full system and a Sparks System?

[Matt400ex_17]

Try the Hi Flo. I have the hi flo with a big gun slip on and it works awesome i had someone run into me and bend my big gun so i had bought the fmf cuz big gun will not just sell the head pipe and i believe the fmf performs much better and seems to be a lil cooler also i dont know what the 2 are made of.

[Natertot426ex]

I use to have the Power bomb and the powercore 4. Yes they do work together. I noticed that it added quite a bit of bottum end for me.

[cals400ex]

the power bomb will fit slip on silencers. the only other one that i know fits slip on silencers is the pro circuit.

will you get a power gain?? i really don't know. i can tell you the sparks x-6 will want to rev high. i had my bike geared up for more top speed. after i got my x-6 my bike wasn't right in the upper two gears. i was pissed. the x-6 is supposed to give great gains up top and i had better bottom end power than top end. the problem was that i was running 15/36 gearing with aftermarket 20 inch rear tires. i guess what was happening was that the x-6 likes the highest rpm possible and the taller gearing actually lowered my rpms. anyways, i changed back to stock 15/38 gearing and my bike now has much more speed in the last 2 gears. i don't know about dead top speed. i know with 15/36 it would run pretty good but you would need to keep it floored for well over a 1/4 mile before it ran up to top speed. when drag racing now with the 15/38, it runs good down low and when i hit 4th and 5th it runs good too. it is kind of weird how those 2 teeth really lost me power in the last 2 gears when the taller gearing should have been picking up speed at that time.

[400exKy1e]

thanks for the help guys, i got 1 more.. what is the difference in the FMF high flow headers and the Powerbomb?

[cals400ex]

i don't know really. i know the power bomb has a little "chamber" if you want to call it that. i have been told the power bomb is better but i can't back that up.

Originally posted by 400exKy1e
thanks for the help guys, i got 1 more.. what is the difference in the FMF high flow headers and the Powerbomb?

Do like I did and contact FMF and ask their techs. I called and spoke with 4 different guys and they ALL said the powerbong was a better header pipe hands down..:macho

I"ve been running a powerbong for over 3 years now and have no complaints about it..:cool:

[400exKy1e]

thanks rico, what slip on are u running? the same as me?

[JDiablo]

i think he is running the HMF slip on...with da powerbong