Taylor's . 409-inch, 10. 4mm diameter high performance ignition wires are available for street or track applications. ""409" ignition wires provide continuous heat protection up to 600-degrees Fahrenheit and 102, 000 volts dielectric strength and is recommended for extreme under hood temperatures and open wheel racing. < abrasion and heat additional for jacket silicone 100% 3-layer a providing wire ignition Spiro-Pro 8mm our over applied is braid fiberglass treated woven tightly> Features a Spiral-Wound core with 350 ohms per foot resistance for EMI and RFI suppression delivering maximum fire power without radio interference and recommended for use with multiple-spark discharge and electronic ignition systems. Available in three color choices, Black, Red, and Blue, with color coordinated low profile 100% silicone PRO BOOTS(R) featuring vibration proof double spring locking spark plug terminals.Pit Stop USA offers Taylor "409" Pro Race Universal Spark Plug Wire Set - 10.4mm Diameter - Red - 90? Plug Boots - Spiro-Wound Conductor - 8 Cylinder Applications 79251 at low everyday prices. Be sure to check out all of our products from Taylor Cable Products including Taylor Cable Products Spark Plug Wire Sets and Taylor Cable Products 409 Pro Race Wires.