K&N filters
Are the K&N air filters worth it? Tanks
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This article shows ISO5011 testing of a number of air filters including K&N. The ISO5011 test feeds dirt at a rate of 9.8 grams/minute into a 350CFM airflow and measures the amount of airflow restriction vs time and the amount of dirt captured vs. passed.
This chart shows for example that the AC Delco filter passes 0.4 grams of dirt and takes 60 minutes of testing until it is clogged. The K&N filter passes 7.0 grams of dirt and takes 24 minutes until it is clogged.
This chart shows filtering efficiency:
Read more here.
This chart shows for example that the AC Delco filter passes 0.4 grams of dirt and takes 60 minutes of testing until it is clogged. The K&N filter passes 7.0 grams of dirt and takes 24 minutes until it is clogged.
This chart shows filtering efficiency:
Read more here.
