so by drills do you mean loud? ive never used drills as a verb before..i have always used it as a plural noun, as in more then one drill. but hey if you like your car more power to ya. i would hope 4 12" anything would "drill"
lol yes its very loud and by drills i mean it feels like its drilling a hole in your head its just that loud. and ive also cut a section out from behind the seat to allow more air to pass thru which made it alot better too