Spark Plug Wires - 10.4 mm - Red
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 600°F
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.