K&N Filters

K&N Engineering has been at the forefront of high-performance filtration since 1969, when founders Ken Johnson and Norm McDonald developed the original oiled cotton gauze air filter from their motocross racing experience. Over 50 years later, K&N remains the benchmark for washable, reusable performance filtration — trusted by professional racing teams, OEM manufacturers, and everyday performance enthusiasts worldwide.

Every K&N product is engineered to deliver measurable gains in airflow, filtration efficiency, and longevity. From their iconic drop-in replacement air filters and cold air intake systems to oil filters, cabin air filters, and fuel system components, the K&N range covers virtually every vehicle on the road. Products are backed by K&N's industry-leading Million Mile Limited Warranty — a testament to the durability built into every part they make.

At FD Racing, we stock the full K&N catalogue including their affiliated brands AEM, Airaid, and SPE — covering performance intakes, filtration, and engine management components for road, track, and motorsport applications.

3074 products

K&N: Shop By Model

Stocked across a huge range including the Vauxhall range and the Volkswagen Polo, among hundreds of others. Use the Make/Model filter to find K&N parts confirmed to fit your car.

In Porsche, that includes the 924, 928, Boxster and Cayman.