Basically thats very right, i get a lot of shoot back when i say putting in a freeier flow filter gives better performance and if you know how to drive you'll save on FC also, the only problem is no one can resist from flooring when they floor an open pod, they just want to hear the sound and that actually triggers the high fc syndrome, imagine just for listening to the sound, you are actually flooring 30percent more each time, my take is still a drop in for retaining that high end torque feel.