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Engine/EFI/Drivetrain
Discuss engine, fuel injection, air intake, and drivetrain modifications here.
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For Sale / Wanted
List your products and product requests here! No commercial advertising please. All transations are between the people doing them, KFX450HQ.com does not take responsibility for any problems.
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Important Information
How-to's, install guides, tech advice, and reviews of aftermarket KFX450 parts.
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Trending Discussions
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Power Commander Fuel Map Database
Dyno/Tuning RoomThis post will be updated as i receive new maps. Please email me your maps to [email protected] along with your name on this site and what the map is made for. To Download Just Right Click then go to Save As and save it where you can find it. -Porting by CSA, FuelATV Intake, KX cams, and 13.5:1...- 218
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05greenmachine · updated
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got out ran by an almost stock kfx
Dyno/Tuning Roomok guys I am mad as Hell and embarrased. I went riding with some guys from work. These guys always give me hell about the amount of $ i have invested in my quad. This dude from work has both a 450 honda bike and kfx quad. He has only a two brothers pipe and PC3 which I set up for him. He let a...- 68
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Post a picture of your current quad
Pictures and VideosShow off your quads I'll start, just a stock 2006 YFZ.- 1K
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KFX450HQ · updated
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Quick Big 3 question
Dyno/Tuning RoomHow's it going, guys? As for everyone, money is pretty tight. This summer I am determined to eventually get the big 3. I am going to have to get the three one at a time. How should the order of purchases go? Fuel atv intake, Pc, Dasa? Dasa, Pc, Fuel atv? Fuel atv, Pc, Dasa? I get excited for...- 11
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mAdHaTTer2392 · updated
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POST SOMETHING ABOUT THE PERSON ABOVE YOU
General Discussion:banana: lets get the party started guys..- 1K
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