A method for making an insulated vehicle extension dash panel includes injection molding an extension dash panel from a structural polymer. The method further includes adding a plurality of components to a mixer to form an insulating foaming layer. The plurality of components includes a two-part liquid silicone compound, a catalyst, and a foaming agent. A screw is then coupled to the mixer and the insulating foaming layer is injection molded to an inner face of the extension dash panel. The insulating foaming layer is then cured to the inner face of the extension dash panel to form the insulated vehicle extension dash panel.