These universal cone shaped air filters from RamAir use a twin layer foam filtration element to provide optimal filtration while allowing for maximum air flow. The foam is internally supported by a T304 grade stainless steel cage to ensure the filter stays in shape. The filter base and neck are constructed from a rubber polymer so they are suitable for clamping onto a MAF sensor or a rigid intake pipe. Ideal for Motorsport use or for bespoke intake systems. High air flow for maximum engine performance. Excellent dust / dirt filtration. Rubber polymer neck for attaching to MAF sensors or rigid intake pipes.