The K$N filter idea sounds good on paper.
Once you wait over 20 hours for one to dry out after cleaning though.
And you have to wait.
I also found the oil was no good for MAF sensors. It does heat up and emit vapors everywhere in the air path.
Speaking of MAF
Be very careful of doing anything upstream of it, like, placing another vehicle's air filter. Altering anything upstream of the maf will alter the airflow across the metering tube. Just a heads up.
I was told( by a maf chip blaster-calibrator) if an elbow is added, it must be at least 3 diameters from the maf for the air to straighten out. So, if the intake tube is 3", the elbow must be at least 9" upstream of the MAF.
Switching from a box type filter to an open element "might" not be such a good thing. If you have a datalogger you will see what I mean.
Personally, I would look for an intake with an oiless -or even paper felt filter. It is more important to filter the air, than it is to pass it.