Porsche Sport air filter for all Solex 40 and 44 carburetors for Porsche 356 Super 90, 356SC, 912 and 356 Carrera models. Top and bottom cover and wire mesh made in alloy, special fine dust filter permanently inside. The filter can be washed with cleaning solvent. Short velocity stack inside for better performance. Bolts and hardware are not included, requires 10 hexagon bolts #N.010.354.1 and 10 washers #N.011.524.7.