The MSD 8.5mm Super Conductor is the very best among performance wires! The Super Conductor’s extreme low resistance, in combination with the capability of suppressing electromagnetic interference, delivers results that seem impossible. Lower resistance ensures that more energy reaches the spark plug to in turn trigger ignition of the air/fuel mixture. The Super Conductor utilizes a copper alloy conductor, which delivers amazing resistance of less than 50 ohms per foot! This means that the greatest possible amount of energy reaches the spark plug. By winding the conductor helically around a unique core, MSD is able to create a highly effective choke, keeping the EMI inside the wire and isolated from other electronics. This package is housed in a heavy-duty sleeve capable of withstanding high temperatures and friction. Finish each end with MSD’s Dual Crimp Terminals, and you are looking at the best wire available!