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correct but different filters fair differently on these ISO tests. I am no expert but according to that document 98.4% filtration efficiency doesn't seem excellent to me. Same is reflected in the research articles I linked for other aftermarket performance filters. To me this shows that...

After tearing out my hair regarding aftermarket filters/intakes for days, i came to the conclusion that they are not worth it and can be potentially dangerous in the long run. Replying in this thread to link some information about the filtration quality of aftermarket air filters: Article...

same here, can you please add me to reserve? thanks