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A spark plug boot heat shield can protect wires and boots from ambient heat exposure and damage up to 1200 F. They can even help in instances where the spark plug boot directly touches the header or manifold. These heat shields extend plug wire and boot life while also increasing ignition-system performance through reduced wire resistance. The Insul-Boot™ by Heatshield Products prevent misfires caused by plug-wire burnout, helping prevent critical engine damage and performance losses. The double-wall construction provides superior heat protection, while special heat treatment of the fiberglass reflects and dissipates heat. The universal design fits most spark plug boot heat shield angles, and is available in natural tan and ceramic colors red, blue and black. Installation of these spark plug wire heat socks is easy and will not hinder spark plug changes.
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