Too Restrictive

This filter is too restrictive, and induced a slightly rich fuel/air mixture condition on my Civic - like I have a dirty filter. I chased my tail for months trying to remedy the problem - replacing sensors, using hotter spark plugs, fuel additives, etc. Went back to using a Honda OEM air filter, and the spark plugs went from a sooty black to a recommended brownish color again. The filter is well constructed, but does not provide enough flow.

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