PTP 000503 T3 T4 Turbo Blanket / Turbo Shield / Heat Shield - Black PTP Turbo Blankets isolate the heat produced by your turbocharger with the purpose of reducing turbo lag, cooler air intake temperatures, protecting and prolonging engine components, and giving a boost in horsepower. Made with the same materials that are used in Military and Aerospace applications. Backed by years of Research and Development. Inside of Turbo Blanket withstands continuous use temperatures up to 1832F. Proudly made in North America with a 1 year warranty.