Torque Solution Thermal Turbo Blanket (Volcanic Rock)Torque Solution Thermal Turbo Blanket Applications: Fits T25 T28 Internally Gated Turbos Torque Solution Thermal Turbo Blankets are highly effective at protecting components around your turbo by effectively blocking the heat produced by the hot back housing. Our blankets are made of protective wire mesh, insulated fiberglass layers, and an external volcanic rock fiberglass layer. Interior Surface: Max Temperature Rating: 2300 Deg F 1260 Deg C