For almost 35 years, K&N Engineering has been a leading inventor and innovator in the line of reusable cotton gauze filter technology for automobiles. From what started out as a family business, K&N is now a duly-recognized global company, having offices in the UK and the Netherlands, because of its enduring dedication for automotive improvement and development. Today, K&N is a known sales and brand leader for air filters. The company has an extensive line of both factory and replacement drop-in filters, Fuel Injection Performance Kits and its own line of Performance Gold oil filters.K&N Air Filters have been the pioneers in long-life performance filters. These have been developed with high performance filtration technology that helps increase your car's power. K&N Air Filter uses a special filter media that is made from cotton gauze and oiled with K&N's special filter oil. This combination of the gauze media and the filter oil helps your engine to work better. Unlike disposable filters, K&N Air Filters need not to be thrown out but they only need to washed for them be reusable again. Because of this, K&N Air Filters not only give your performance benefits but also in money savings, fuel savings and most importantly, these help in the reduction of environmental waste.Aside from its line of air filters, K&N also has an exclusive line of cold air intakes and its won line of FIPKs. Check out the K&N Cold Air Intake and K&N FIPK.For better results and performance, trust only the best. Trust K&N, the world's best air filter.