on an auto is not a waste of money. it'll produce gains also, but what he means is that "auto's are slow so theres use in modding."
i don't agree with this.
Also i'm not from washington so i don't know what rain conditions are like out there, but in cali when it pours, there are some floods around my area. Just to play it safe is all. get the CAI
but given that hydrrolocking has low occurence i's just like to play it safe.