what would i need to get 4 wheel disc on my 91 dx hatch? and i also would like to upgrade them. i have seen 90-93 teg front discs used and i am thinking about that, the guy who did it just swapped the hub i think. would the teg back brakes work too? and would i just have to swap the whole hub as well? or do i need to get other shit like control arms and whatnot? also, ive seen some adds for brake coolers that looked like a little scoop that directed more air at them, i know honda brakes get hot as fuck and i was wondering if anyone has heard anything about these or if they are just a waste of money.