ACCEL SuperStock spark plug wires are uniquely engineered to upgrade your old OE wires. Ideal for street-driven applications; these 8mm wires have 450-degree-Fahrenheit-rated silicone jackets in classic ACCEL yellow extruded over sturdy; tightly woven fiberglass braids. The spiral-core wires feature RFI suppression; special high-dielectric-strength EPDM inner insulation that exceeds SAE specifications; and zinc-plated terminals; come in a set of 8; and feature straight boots.