Highlander Air Filter Installation and Type
Has anyone changed the air filter on a 2009 Highlander? Has anyone used a K & N replacement? Is there any mileage or horsepower gain?
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Comments
Buy the K&N an keep the engine clean!!
A very high percentage of that Arizona dust was probably ingested by the engine.
Nothing is "free", more inlet airflow, lower inlet restriction, will always mean more dirt into the engine.
Life is a series of compromises.
Have use them on many vehicles off/on road and much dust, always check them when clear and never found any dust/ sand in the out flow side!
Think what you must, But I'll keep using them till I quit driving!
P.S. N\K&N on a 1992 Explorer sold it to by the Highlander with 170,000 mi on the Odometer, and compression was equal on all 6 cylinders!