K&N air filters are one of the most sought-after filters in the market and are available for almost all applications. While people have reservations about it, many still purchase it, particularly for two reasons. First, it allows high airflow into your engine, invariably increasing power, especially for those who modified their engines.
Secondly, you can use it for a long—even throughout your vehicle’s lifetime, saving you cost in the long run.
However, to use it that long, you must clean and reoil it using the K&N air filter cleaning kit—a task requiring utmost care. This article will show you how to clean K&N air filters. But how do you know your K&N filter is even dirty?