When I first bought my Injen I installed it as a SRI, just after 1 week I decided to run it like a CAI and I had it like that for about 3 months. This weekend I thought it was time to clean the filter. The filter itself was not very dirty at all, but there was a lot of dirt, sand, and even mud around where it connects to the pipe. It rained a lot here last week so I am thinking the rain "washed" the filter, but I wonder how much gunk finds its way through the filter and into the engine? Also only after 3 months the filter did not show any signs of having any oil. I know the filter gets wet when it rains. I am not really afraid of hydrolock, but I am more concerned about how well the filter works saturated with water and no oil. I am thinking of switching back to a SRI.
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