K&N Engine Air Filter - XC90

This filter has an international reputation for effective service under the most grueling conditions. Patented design utilizes surgical cotton in multi-layers, oiled and sandwiched between wire mesh. K&N filters not only clean the air, but also straighten the airflow. Your engine is provided with a less turbulent air stream than other popular filtering mediums (like paper and foam.) Under normal conditions cleaning and re-oiling is not required until 50,000 miles (without loss of efficiency!).