They dont do anything, fact, they will also fork your engine up over time.
good point..
i already have a K&N panel filter fitted.. you think it will make much difference than that?
stick with that as its not effected by heat stroke.
ramcharger looks nice but doubt the it will do anythin. noise wont be effectd as its basicly a standard air box and as its not right up against the grill i suspect the speed of the air would be a slight breeze and so not really a RAM effect