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 systemsHigh air flow for maximum engine performanceExcellent dust / dirt filtrationRubber polymer neck for attaching to MAF sensors or rigid intake pipesThe RamAir universal alloy neck cone air filters are available in a range of sizes and neck diameters to suit various applications. Filters listed with a 'Universal' internal neck diameter are supplied with a range of adaptors to fit pipe sizes 70mm, 76mm, 80mm, 85mm and 90mm.