Insultherm Spark Plug Boot Sleeves (FG) are completely non-conductive, resist all engine chemicals, will not support combustion, and provide an easy, economical solution to the challenge of wire protection in the cramped, high temperature environment of any high performance engine compartment.
These boots offer high temperature protection and extend the life of spark plug wires where they need it most, at the boot.
Made from 3/4" diameter double thickness fiberglass sleeving, (triple thick at the sewn end), these boots will protects wires from high engine temperatures in excess of 1200�F. Once installed, the sleeves require no clearance from hot surfaces, and can even rest direclty on hot exhaust headers with no effect.
They can be easily installed by simply slipping the sleeve over any spark plug cable and boot(even right angle boots)