Universal GRP air filter box, as it was sold for Rau and Pss chassis in the 80s.
 Due to its extremely small design, it can be used for almost any special chassis such as EGLI, Bimota, Rickman, etc., including Streetfighter with a wide variety of engines.
 19 large holes are drilled on the underside to provide enough oxygen for the engine.
 The air filter box is made of red-dyed GRP, in a good, light quality known to us in our in-house workshop.