in no way what so ever will a pod filter make the flutter/venting noise. its all to do with the bov you have. all a pod kit does is eliminate the muffling effect that the stock box has and allows the sound made by your bov to resonate (echo). now some pods by different companies will affect the sound to varying degrees due to their differnt design, but they are all basically justa bit of shaped paper, foam or wiremesh on the end of a tube. just like the one you already have on your car