i got an 04 accord coupe ex I4 and i can tell you that any CAI is gonna be a PAIN to put in if you try to do it yourself. i have an injen 2-piece CAI and i still havent gotten the second piece in, so its functioning as a shortram for now. im plannin on gettin it installed professionally once i head home from college in a week or two. but yeah, im sure once it gets on, it'll be hotness. just...be careful when installing... :P