Your new POP-Charger is the most efficient air intake system available. By adhering to ideal venturi theory, a 4:1 convergent area and a modified parabolic profile maintain a near linear air velocity along the entire venturi surface. Interestingly, it is the POP-Chargers aluminum venturi that accounts for the largest performance gain; the filter element itself is designed simply to not adversely affect this venturi. The POP-Charger uses a very low restriction gauze filter element. By saturating the gauze with a sticky oil, foreign particles are literally stuck to the gauze. The "wicking action" of the oil quickly coats each trapped particle, making it an active part of the filter. Your original filter uses a sieve principle, which must restrict all air passages in the element to a size no larger than the smallest particle being filtered. An oiled gauze filter however does not need to restrict particles, but instead, attracts them, allowing for much larger air passages while still removing particulates. Unlike your original paper element filter that must be discarded when it is clogged, gauze element filters can be continually cleaned and reused.