Thermo Tec platinum exhaust wrap insulates your exhaust for cool performance. These rolls are manufactured using naturally heat-resistant volcanic rock, an exclusive hybrid construction, and a proprietary weave lock design that`s durable and minimizes fraying. Together they create a heat shield that can reduce your vehicle`s underhood temperatures up to 70 percent and withstand radiant heat up to 2000 degrees Fahrenheit as well as add horsepower to your engine.