HP Stealth Shield is the only product engineered and proven to reduce heat from inside your vehicle. HP Stealth Shield uses the proprietary technology developed for Heatshield Products welding blankets. This results in a revolutionary heat insulation and heat barrier that?s only 1/8-inch thick! It?s designed to mount inside your vehicle on top of the floor or sound deadener to protect you from heat radiating from the engine and exhaust. This specially engineered mat is extremely efficient at dissipating heat. HP Stealth Shield will fit under carpet without causing fitment issues.