Maximum Air flow Superior Filtration Qualities Full twin layer foam construction Complete with Clamp 43mm Neck ID - 79mm Tall Product Description These pod type air filters are designed to clamp directly onto your engines intake. The come complete with clamp for ease of fitment. Made using Ramair’s famous twin layer filtration foam, these filters offer superior filtration whilst also delivering an increase in performance. For optimum use you may need to adjust your carburettors jetting after fitment.