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  1. I'm power thirsty! Help! 400ex

    Engine/EFI/Drivetrain
    Alright, I just down sized from a 450r to a 400ex and im looking for more power! I mostly trail ride and just screw around with friends drag racing, jumping etc. Current aftermarket parts -K&N with outerwears -FMF powercore slip on -14t front sprocket - loving this for wheelies I was...
  2. hotcam help? 400ex

    Engine/EFI/Drivetrain
    Installing stage1 hc check signiture for mods cc etc. Should my mj be sufficient or to small all input welcome thanks :confused:
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