Every 6000 miles I try to clean my filter and I do it with a steam cleaner and a bit of cleaner. In general, I steam clean the whole car, spend detailing and washing. The article Car steam cleaning process | What is car steam clean? has a lot of information on steam clean for car both inside and out. I find it very easy to clean this way.I installed my Joe Z intake pipe and Toms filter......Just wondering what do you do to clean the filter and how often?