Honda TRX ATV Forum banner

performance

  1. trx 250ex build

    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...
  2. 2008 Honda TRX250EX

    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?
Top