DEI Titanium Spark Plug Boot Protectors are the latest in thermal protection technology. Developed from a unique material mined from lava rock, this material is naturally resistant to heat, chemicals, abrasions and contaminants. The material is stranded and woven into a tight, proprietary style weave for added durability and strength, yet is pliable enough to provide a universal fit for straight or angled boots. High horsepower engine compartments are known for extreme heat that can put spark plug boots and wires at risk. With excessive heat generated from the exhaust manifold and headers the ignition system is vulnerable to the potential of burning, hardening and cracking of ignition wires and boots that could lead to arching, engine misfire and potential ignition system failure. Titanium Protect-A-Boots, with LR technology, are engineered to handle extreme heat up to 1800°F (983°C) providing the ultimate protection for today's high voltage ignition systems for many applications including automotive, marine, and powersports. The color and weave work together to give DEI's Titanium Protect-A-Boots a "cool" carbon fiber appearance that looks great under the hood ideal for race, street, show cars and off road vehicles.