The MSD 8.5mm Super Conductor Wire is the wire crafted for high-performance applications. The 8.5 has been engineered from the ground up to provide everything you've ever desired in a wire: extremely low resistance with no electronic interference. There are just 40 - 50 ohms of resistance in a single 12-inch piece of Super Conductor Wire and it is the lowest resistance for helically wound wire. MSD uses a copper alloy conductor to achieve this, due to its high voltage carrying capacity. Because there is less loss of spark energy due to the low resistance, more energy reaches the spark plug. The conductor is exceptionally tightly coiled around a unique centre core. In fact, a single foot of plug wire contains approximately 40 feet of conductor wrapped around it. When paired with a ferromagnetic-impregnated centre core, this winding process creates an exceptionally effective Electro Magnetic Interference (EMI) "choke." This choke, or suppression ability, keeps EMI inside the wire, where it won't interfere with your vehicle's other electronics. The conductor assembly is encased in an outer sleeve that is equally stunning. A special silicone and synthetic material mixture create a sleeve that is resistant to intense heat, abrasion, and rips. The MSD 8.5mm Super Conductor Plug Wire is available in Universal Kits and Bulk Lengths.