K&N 99-0533 is an 8 ounce squeeze bottle of air filter oil. K&N Air Filter Oil is the only oil specially formulated to work in combination with the cotton fabric in K&N air filter...
K&N 99-0635 is a 1 US gallon bottle of Power Kleen air filter cleaner. K&N Air Filter Cleaner is the only cleaner recommended to clean K&N cotton air filter elements. K&N Power Kleen...