Features: 1.Fitment: The air filter is a replacement for GPZ1100 1983?1984, for KZ1000 LTD 1977?1980, for KZ1000 POLICE 1978?1981, for Z1 900 1973?1975. 2.Protection Engine: The air filter could filter impurities entering the engine air to keep the engine clean, and increase horsepower and acceleration. 3.High Performance: Organ mesh design, double steel mesh effectively filters impurities and provides purer air, conical pattern with doublel mesh design has excellent braking power. 4.Practical: Increase in air contact area and increase inspiratory volume, long term use, easy cleaning, improve throttle response and more horsepower. 5.Compatibility: The 28?48mm universal air filter is designed and manufactured for a variety of applications, suitable for most motorcycles. Specification: Item Type: Motorcycle Air Filter_x000D_ Material: Rubber + stainless steel_x000D_ Compatible: Universal fits most 28mm-48mm motorcycle carburetor nozzle outside diameter_x000D_ _x000D_ Fitment:_x000D_ Fit for GPZ1100 1983-1984, for KZ1000 LTD 1977-1980 _x000D_ Fit for KZ1000 POLICE 1978-1981, for Z1 900 1973-1975_x000D_ Fit for KZ1000A 1977-1980, for KZ1000E 1979-1980_x000D_ Fit for KZ1000D 1978, for KZ1000D 1980_x000D_ Fit for KZ900A 1976-1977, for KZ900B LTD 1976_x000D_ Replacement for Suzuki GS1000 1978-1979,GS1000E 1978-1980 _x000D_ Replacement for Suzuki GS1000L 1979,GS1000SS 1979 Fit for GS750 1977-1979