If you are running the K&N filter in dusty conditions, I would recommend using the Donaldson inner filter (Donaldson P/N P782300). The Donaldson air filter housing is actually designed to run two air filters (inner and outer). I was really surprised at how much fine dust gets past my filter wears and K&N.
K&N filter
in Defender Engine
Posted · Edited by Benji
If you are running the K&N filter in dusty conditions, I would recommend using the Donaldson inner filter (Donaldson P/N P782300). The Donaldson air filter housing is actually designed to run two air filters (inner and outer). I was really surprised at how much fine dust gets past my filter wears and K&N.