SUMAX Spark Plug Wires 10.4 mm Blue 49638

Precut and have the plug/coil boots and terminals already installed, Boots and wires are made from extra-high-temperature silicon, which gives protection up to 600F, Spiro-Pro core provides up to 10 times the conductivity of a standard carbon-core wire, Low resistance means they run cooler and last three to four times longer than carbon-core wires, Made in the U.S.A.