K&N Air Filters for BMW Motorcycles
The Last Air Filter Your Engine Will Ever Need - K&N warranties these replacement filters for 10 years or 1 million miles. Why would they do such a thing? Because they are engineered to last the life of your engine. They use only the highest quality materials and never compromise. Every 50,000 miles, we recommend you clean and re-oil the filter, then put it back in your engine and it will perform virtually like new.