Hi, I have a 2001 Impreza sports special (classic shape, non-turbo, special edition, made on the changeover year to get rid of excess spoliers, bodykits, etc). I have just bought a universal induction kit to couple with my exhaust. Do I need to add breathers to the 3 pipes that used to run into the old airbox or are they ok left as they are? Cheers for ur support.