maybe so, but i have been out since 4.30 watching the mighty wales beat the dirty english and then enjoy a few more beers before running short of cash and energy. i just had to check my pms before i crash out and sleep till lunch time tomorrow
the truth is it makes very little difference using either, it dont even need to be any bigger than average. and the reason for that is there are many other bottle necks that will restrict the power before the filter does. after 5mins of ownership this should be obvious. you could be running 230-240bhp with a green panel in the standard airbox easily enough (with all the other **** ofcourse)
the only real detail about the induction is the sound, but this is down to the dimensions of the intake more than the filter