Yeah you gotta cut the bumper support on an s13 for sure. I don't remember if you have to cut it all the way out but you have to make a space to accommodate the size of intercooler you're running.
Hey, what car did you drive. s13 or s14? i know the intercooler is sold, but i can buy one new but i just want to know if you had the s13 and if you had to cut or remove the bumper support? or do you know if the bumper support gets in the way completely and you cant even try to modify it.