The K&N air filter 33-2266 for Ford - USA Thunderbird 3.9i 2002-05 consists of cotton, with about 40% more airflow compared to a original air filter Ford - USA of Thunderbird. The K&N air filter 33-2266 is thinly coated with a special oil to achieve an optimum filtering effect and to grant long service intervals for a Ford - USA Thunderbird 3.9i.
By using a K&N air filter, the power of a Ford - USA Thunderbird 3.9i and increased fuel consumption can be reduced.
