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  1. Engine/EFI/Drivetrain
    Hello all, I’m new to the forum and am in need of some help. I currently have a 2007 Honda 400ex that I bought from an individual around 6 years ago. After buying and having issues I realized that my bike is far from stock lol. What I do know is it has stage 2 hot cams, FMF power core 4 full...
  2. Engine/EFI/Drivetrain
    Ok so I'm considering building up the motor in my 2005 trx250ex. I want to bore it, new high compresion piston, cams, head work, ect ect.... My question is has anyone built one of these motors and what kind of mods/sucess have you had. Basicly is this worth it, what can i expect, and any tips...
  3. Engine/EFI/Drivetrain
    hey guys, im new to the forum :) just wondering if anyone has any mods/upgrades to suggest to me for my atv (performance related). thanks! and also.....what exhaust is better for my atv, fmf or hmf?
1-3 of 3 Results