Thermal Zero LAVA TITANIUM UNIVERSAL T4 Turbo Blanket Holds 2400 degrees. MADE IN USA unlike the rest. Fits most T4 turbochargers including Garrett, Precision, Turbonetics etc. Manufactured with proprietary two part (Aluminum bonded pulverized lava rock) outer jacketing material. Easy to install upgrade for performance while effectively lowering under hood temperatures. Design fits most externally wastegated T4 turbo housings. Internally and externally rated to over 2500F direct heat. Handcrafted and designed in the USA