The K&N air filter 33-2990 for BMW 1er (F20/F21) 116i 109/136 PS consists of cotton, with about 40% more airflow compared to a original air filter BMW of 1er (F20/F21). The K&N air filter 33-2990 is thinly coated with a special oil to achieve an optimum filtering effect and to grant long service intervals for a BMW 1er (F20/F21) 116i.
By using a K&N air filter, the power of a BMW 1er (F20/F21) 116i and increased fuel consumption can be reduced.