I just finished cleaning my filter. All I can say is "What a Mess!"The cleaning kit costs $10 plus 45 minutes of my time (so far) cleaning and now it is setting on the bench to air dry. How long do I leave it dry? Who knows because K&D; doesn't say how long! Once dried, I have to treat the element with the special K&D; spray.The mess reminds me of the old days of cleaning Oil Bath type air filters.If you like cleaning stuff then this is the filter for you! If you would rather do other more pleasurable things, don't even consider this type element for a street vehicle!Sorry K&N;, you make great products for off road and racing but after the next cleaning when I run out of the cleaning kit components and would have to spend another $10 for a cleaning kit (plus my time), I'm going back to paper elements.For now, I am going to walk to the post office while my element dries for who knows how long!