i know these can be cleaned and re-used, but how? any help is appreciated 8)
you learn something new every dayujmot said:The filter element. You have the JWT, so it would be the blue part of the filter.
When you use the solution to clean it, it will break down the oil on the filter and after flushing it with water, it will look like a cotton gauge w/ a wire mesh. The blue color is from the oil used. If you use JWT's oil to re-oil, then the filter will turn blue again. K&N's oil is red, so your filter will turn red.