I have a Mopar CAI on my 3.6 Charger and have cleaned it every 20k miles as recommended. It's a lifetime dry filter. I just passed 220k miles on this car. The last round, I decided to really try to clean it out well. I used simple green rather than dawn dish soap and took it through multiple cycles. I couldn't believe how much dirt was coming out of this unit. I think I went through 5 cycles to get it to be clean. But when I put it back on, I could tell, and my mileage went back up to where it used to be. Lesson is-they do clog over time and it pays to do a really thorough cleaning job on them. I regularly do oil analysis on that car and the only time silicates were high was after driving through some major blinding dust, but even then it was below universal averages. So the filter media works very well and my feeling is it might actually outlast the car itself. Definitely got my money's worth on it just on filter savings alone.
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