These bolt on air filters from K&N are designed to fit SU carburettors and they have been developed to allow for maximum air flow with improved filtration compared to a standard paper element filter. This enables more power to be released from your engine with no compromise to dust filtration. The filter assemblies are complete with K&N's famous high flow cotton gauze filter element and chrome plated top and base plates with a sealing gasket. The filter elements are washable and re-usable which offers great value for money.Designed to bolt on to SU carburettorsMaximises air flow for increased engine performanceImproved dust filtration compared to a standard paper elementChromed top and bottom plates for superb looks and corrosion resistance150mm diameter round filters with a choice of filter heightAll the filters listed are round in shape with a 150mm diameter and have options of straight or tapered sides. The tapered option is ideal for applications with limited space such as classic