This is a full foam set which will fit most 1/8th size air filters. This is a higher quality than supplied as standard with most filters.
It consists of a two piece set with a coarse foam outer layer to catch larger particles, and a fine foam inner for superior filtration of small particles, leaving your engine free to breathe easily.
The inner foam is finer than standard filtration foam, providing additional protection to your engine.
Please see my other listings for 1/8th and 1/10 scale complete filters in Metal and Rubber
Note : Some 1/8th filters may only need the inner part.