i know this guy with a stock civic dx that showed me how to make some kind of an intake by undoing some air hose in front of this box or somethin and aiming it up so it sucks a lot of air in. He said that this gives him like 15 hp or somethin. Does this work well and will it damage your engine at all?? i hear that it sucks a lot of dirt in from your engine so could i get some kind of filter for it??

 

If he removed his air filter and put a strait pipe on there he MIGHT get 15 hp.

Just get a Cold Air Intake.

 

it makes it louder..
thats about it

 

Yeah, basically he removed the resonator.

 

1-2 hp is about it.

 

15 HP from that? show me a dyno graph and i'll believe it
people exaggerate HP numbers too frequently