K&N Engineering, Inc., established in 1969 by Ken Johnson and Norm McDonald, is a prominent American manufacturer specializing in high-performance automotive filtration products. The company’s name, “K&N,” originates from the initials of its founders. Headquartered in Riverside, California, K&N operates globally, offering a diverse range of products, including air filters, cold air intake systems, oil filters, and performance parts for cars, trucks, motorcycles, and industrial applications. Their products are renowned for quality and innovation, serving both everyday drivers and motorsport enthusiasts.