I'm curious. A mechanic in town says they're the best of the best. NAPA sells them as their high end line. They're Resistor plug wires. Just wondering if there are issues with the Resistor plugs our cars use?
I've used them, total junk. The best of the best is Magnacore. I am running those on two of my vehicles. Belden is a fairly standard wire, but for high energy ignition systems like those used in Ford's they fail to measure up to the original Motorcraft wires.