When I traded my ram air for a stock air filter system, it came with a K&n filter in it (replaced with WIX)… I coincidentally kept the filter for whatever reason but when I opened up the cowl to wash out the drain I realized the stock tj air filter perfectly sticks to the air intake (on older models without the additional snorkel thing) so I just stuck the K&n there and boom, no more dust, I can just wash it off once a year, and it doesn’t matter if it gets a bit of water on it during hard rain.