Feature●Ceramic boots withstand temperatures up to 2,000 degrees Fahrenheit.●8mm double silicone construction black wires rated at 600 degrees Fahrenheit.●500 Ohms/foot ferro-sprial core offers the highest level of RFI/EMI suppression.●The Extreme 9000 Ceramic Wires also feature stainless steel spark plug terminals for maximum spark energy to the plugs.●Boots available in both straight and right angle configurations.Description