ACCEL 9002CK, Spark Plug Wires, Pro Fit Ceramic, Spiral Core, 8mm, Black, Set;Stainless Steel Plug Terminals; RFI Suppression For Street Driven Applications; Black ceramic for good looks; Ceramic boots withstand up to 2,000° Fahrenheit; 8mm double silicone construction black wire rated at 600° F rated; 500 Ohms/foot ferro sprial core offers the highest level of RFI/EMI suppression;