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  1. General Discussion
    Hey guys, I'm new to the page! I'm having a real tough time not figuring out what system I want, but where to find it!!! :mad: I'm having a hard time finding a seller for a Factory 4.1 pipe for my 2008 KFX 450r aswell as, and more important to me, a mega bomb header. I have read a lot of you...
  2. For Sale / Wanted
    I have a Pro Circuit T4 slip-on on my KFX, wanting to switch it up a bit. I am interested in trading plus cash depending on exhaust you have, kind of wanting to go to a full system. Shoot me some offers, let me know what you got!
  3. Engine/EFI/Drivetrain
    Hi, i was wondering if i could add a fmf power bomb header to my yoshimura rs2 slip on? Also whats rhe diference between the poerbomg and megabomb header?
  4. Engine/EFI/Drivetrain
    I'm sure there might be an existing thread already that cover this but if someone could give me the run down on this i would appreciate it. I've currently got the fmf powercore 4 slip on and am wanting to get the header to top it off but I can't decide between powerbomb or mega bomb? Whats the...
  5. Engine/EFI/Drivetrain
    Well i just got my new heated grips & thumb throttle, gauntlets and FMF spark arrestor from Rocky Mountain ATV. Everything mounted up fine and worked great except for the spark arrestor which didn't fit the Factory 4.1 muffler at all. I ordered it because it says replacement for all Factory...
  6. Engine/EFI/Drivetrain
    I have an fmf power programmer, fmf factory 4.1 and a velocity intake. Does anyone have a similar set up and could you tell me what your settings are for your programmer?
  7. General Discussion
    hey, I recently became a member to this website after purchasing a 2009 kfx 450r, I made a video of my fmf factory 4.1 silencer exhaust, its my first video and it would be cool if you could take a look at it. Thanks.
  8. Engine/EFI/Drivetrain
    I have a 08 with a full system FMF exhaust, FMF power programmer,15T front sprocket and I just put on a velocity intake. When I bought the bike it already had the power programmer on it and the previous owner turned all eight of the modes all the way up, which I know can't be good for the bike...
  9. Engine/EFI/Drivetrain
    Alright, I have an '08 with a FMF Power Bomb header, Powercore 4 exhaust and Power Programmer(Not sure of the settings though, was put on by previous owner.) But i only have the stock intake setup, will this give me enough airflow to my motor? Or do I need more? and if I do, what do yall...
  10. Engine/EFI/Drivetrain
    hey has anyone heard anything about use of the FMF Powercore 4 pipe? looks pretty cool if you ask me, but i can't find any pipe shootouts that use it, the one in the forum doesn't at least. and i couldn't find any other pipe shootouts for the kfx except for the one in the forum?? :( so if you...
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