So, I have been running these filter for awhile now, and they do work good. I decided to bring them to my carwash to give them a good washing, with some good pressure. I have done this before, and it seems to work well. For some reason, after two days of drying both filters, I put it back on the fan with pressure loss. I don't know what happened. It's just like I put a piece of plywood over the fan. When I feel my exhaust ducting, you can tell there is some good air flow exiting. When I put the filter back on, there is hardly any air flow, and all my pressure is lost. It was just fine before I washed the filters. Normally, the passive intake will have nice cool air flow going through, that you can easily feel with your hand. Also, my door gets sucked close, and I know It is working how it should. I thought maybe the filters were just really wet still, but even if they were, I would not think that my "8 Vortex would get bogged down by being a little wet. Had anyone had this problem like this using the Filters? Any suggestions?