i been running my AEM intake for about 2yrs. now that i think about it, did it help or made my car slower on acceleration? i kinda forgot the feeling of a stock IS300 so i want to ask, does your car feel sluggish around 500-2500rmp (refering to auto owners)? to bad i crack my stock intake so i cant switch back. also does any other aftermarket intake owners feel sluggish too?