Unless the laws of physics have changed, there are only two ways to increase air flow through the same size opening. #1 greatly increase air pressure entering the intake side; #2 reduce restricion in the opening-ie: reduce filtration efficiency in this instance.
Of course it's your money to spend any way you choose.
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2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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