ENGINEERED TO LAST
One High-Flow Air Filter™ is designed to last for the entire lifespan of your vehicle. Under laboratory conditions, a K&N air filter was washed and re-oiled more than 100 times and still provided an exceptionally high level of engine protection and airflow. K&N High-Flow Air Filters™ require servicing once every 50,000 miles under normal highway driving conditions—and the oversized, conical High-Flow Air Filters™ included with some air intake systems only need servicing every 100,000 miles under normal highway driving conditions. K&N high-flow oil filters, cabin filters, fuel filters, and intake systems are all designed to have long service lives while maintaining outstanding performance.