LEDAUT Titanium Turbo Blanket T3 Lava cover for Turbocharger Thermal Heat Shield Cover with Fastener Springs Fit most of T3 turbine housing turbo charger. pack of 2)Stainless steel spring fasteners. Outer and innerside made from pulvarised lava rock.Underside made of high quality silica fiber. Turbo heat shield can withstand heat of up to 2000F Keep crucial engine components protected from the heat of your turbo. With LEDAUT T4 turbocharger turbo blanket,you can protect and prolong the car engine components and give a boost in horsepower.It helps the turbo spool faster.