Reduces under-hood heat by up to 50% for cooler performance and greater reliability. Lowers intake air temps, maintains high exhaust gas velocity, and prevents horsepower loss from extreme heat. Made in the USA from premium lava rock fibers interwoven with fireproof materials. Features a proprietary weave that makes installation around bends and curves simple and secure. Cuts down on heat soak to improve performance, lowers intake air temperatures, protects against burns, shields sensitive components, and reduces heat transfer through the firewall and floor for a cooler, safer ride. Resists damage from chemicals, oil, and vibration for long-term durability. Withstands continuous direct heat up to 1800°F and intermittent spikes up to 2500°F for unmatched protection and durability.