Sedeta&reg; (Pack of 8) Spark Plug Wire High Heat Boot Heat Exhaust Protector Header Manifold Cover Thermo Wrap Shield Protection Barrier Black Protect your Spark plug wire boots from the extreme heat generated by the headers and exhaust manifolds. These double layered high heat boot covers are rated to protect up to 1200 degrees! They create an effective non-flammable thermal barrier that will extend the life of your ignition wires. They measure over 6 inches long! 8pcs Black Protectors.