I still have the originals on both 01 wagons I have

no cracks no ignition probs and dirty as hell to boot, but still work great LOL
I had oversized then went to performance on my old car but honestly it made my old car run like utter crap so I dug the old ones out of the trash bin ( OEM Original Stock 12 year old Wires) and threw them on with new plugs and it ran like new ( pretty much Im sticking with stocks) unless they have a ford racing set specific to the Zetecs XD