i have a K&n filtercharger in my truck ,and it seems to run stronger. when i rev it up real hard i can hear it sucking the air into the airbox from outside the truck... sounds pretty cool. makes kind of a "shhhhp" sound.

I agree with you D'mon, the K&N's do seem to get dirty quickly,..well at least the filtercharger ones do, i dont know about the cold air's. But look at it this way, you know it is working properly because all the dirt is on the outside and not going into the intake.:thumbup:
I just bought my truck and really didnt give it much running yet, the filter is a little dirty so far. What is the technique you use to clean out the filtercharger filter? Water?, air?, special cleaner? any help would be good for me when i go to clean it.
thanks, -Adam-