Thermal Zero BLUE UNIVERSAL T4 Turbo Blanket Holds 2400 degrees. MADE IN USA unlike the rest. Fits most T4 turbochargers including Garrett, Precision, Turbonetics etc. HANDCRAFTED USA MADE TURBO BLANKET BY THERMAL ZERO HANDLES INTERNAL TEMPERATURES OF UP TO 2400 FAHRENHEIT FITS MANY DIFFERENT TURBOCHARGERS WITH THE T4 EXTERNALLY WASTEGATED HOUSING REDUCES UNDER HOOD HEAT FROM TURBO BY UP TO 80% UTILIZES HIGH QUALITY INTERNAL CERAMIC MATERIAL ALLOWING THIS BLANKET TO HANDLE HIGHER TEMPS THAN OTHER FIBERGLASS MADE BLANKETS