if you intend to race and cage it, i dont see why you do need them. keep in mind its what holds your front fascia. if you drive on the streets, your car is a hazzard to yourself as the have crush zones to absorb energy in a crash. so for a track only car, rebrace to hold your rad support and strut towers, if not, needs new sheet metal and only a licensed body technician can do frame work as it is considered structural.