replacement wires?? w/pic

Hey, i believe these are called my Fuel injection fusible link wires? well as you can see they are corroded and taped up. when unplugged the car dies, and i think these being loose while driving has been causing some problems. So i need a suitable replacement, but im not sure if a simple single cable will work because as you can see at one point, the single wire splits into two, then back to one again?? if this is for a fusible link purpose or whatever im not sure.
DOES anyone know what i should replace them with??

thanks!!!

-jas