K&N Cartridge Oil Filters are designed to satisfy the needs of racers and engine builders as well as the average vehicle owner who wants the best oil filter available. K&N cartridge oil filters trap harmful contaminants while the filter's construction allows for high oil flow rates. All K&N oil filters are manufactured to meet stringent engineering standards. Keep your vehicle running at its peak performance with the proper engine oil and filter. It is recommended that you change your oil filter at every oil change. Keep your engine protected by regularly replacing your old oil filter with one from a quality brand. For over 50 years, K&N has been an industry-leader in automotive filtration and technology-offering products to increase performance, protection, and longevity in thousands of vehicle applications for consumers worldwide. HISTORY In the early 1960s, two motorcycle racers, Ken Johnson and Norm McDonald (K&N), developed a ground-breaking new idea for an air filter-one that could perform under the demands of dusty, dirty off-road environments. After experimenting with numerous types of filter media, they discovered that an oiled cotton design allowed the filter to not only capture contaminants very efficiently, but also allowed it to be washed and reused, and the original K&N High-Flow Air Filter was born. Five decades later, K&N is still innovating industry-leading filtration technology, and offers outstanding protection for everything from top-fuel dragsters to commuter vehicles across the globe.