INJEN-CIA installed, notice the rev up slower than stock airbox.

[cobinwei]

i used the injen filter. clean maf sensor? i did not clean the MAF sensor though. i may try check every thing again. basically i will re-instal this CAI see if any difference. thanks mate, if after re-install it and plus clean the MAF senso, i may need u further help. i am appreciate

Next question: What filter are you using?
Is it a cheapo ebay-spec one?

You may have flow issues.
And did you clean the MAF sensor?

[MadAussie]

You might find that the filter Injen supplied has shit flow characteristics. I've got no idea to be honest, though. But I've had cheap filters in the past that are practically throw-away items as soon as you unpackage it.

[TD]

Could be a silly question...did you get the right model CAI for your car? i.e. if it's a 3MPS are you actually using one for an MPS not a normal 3?

[lucifuge]

INJEN are hardly crap; their CAI's are very well suited to Honda's.
Never heard of them used on Mazdas tho...