These ACCEL 8.8mm spiral wire sets are custom-tailored for true street/strip performance use. ACCEL 8.8mm spiral wire sets feature oversize 8.8mm ultra performance wires and spark plug boots, double silicone construction with a fiberglass braid, and a spiral-wound steel core conductor. If you're looking for excellent performance for your street/strip ride, you need one of these ACCEL 8.8mm spiral wire sets.