i have a k&n cone filter tossed on in place of the oem intake and was wondering how long till i need to clean it?

 

when it looks a lil dirty you can clean it. I use to clean mine by putting it in a bucket with water and a lil detergent then i would swash it around.

I then took an aircompressor and back flowed it with air. IF you dotn have air dont worry about it to much.

Let it dry then oil it.