This MSD 8.5 mm super-conductor wire set is the finest in the industry and we recommend it for race or street. It offers an extremely low resistance of less than 50 ohm’s per foot, for more spark energy to your plugs. Copper alloy conductors wrapped in a series of silicone and synthetic materials make this wire an excellent choice for street-friendly suppression or competition use. This is a MOROSO set for street/performance.