A method for manufacturing a hollow overmolded polymeric article, wherein the hollow overmolded polymeric article is a structural reinforcement component used in a vehicle component selected from a lift gate, door module, front end module, instrument panel carrier, and bumper cladding of a vehicle structure, the method comprising: positioning a hollow polymeric structure in a mold of a molding apparatus (100, 200, 300), wherein the hollow polymeric structure has an internal surface and an outer surface, and wherein the hollow polymeric structure is open at two end portions; supporting the interior surface; disposing a fibrous polymeric material into the mold proximal to the outer surface; overmolding the fibrous polymeric material onto to the outer surface; opening the mold; and removing a hollow overmolded polymeric article comprising the fibrous polymeric material overmolded on the hollow polymeric structure;; wherein supporting the interior surface of hollow polymeric structure comprises: plugging the ends of the hollow polymeric structure and applying pressurized fluid to the hollow space within the hollow polymeric structure with a liquid pressurization device; or plugging the ends of the hollow polymeric structure and applying pressurized gas to hollow space within the hollow polymeric structure; or inserting a slider into the hollow polymeric structure, wherein the slider contacts the inner surface of the hollow polymeric structure; or inserting a metal insert into the hollow polymeric structure, wherein the metal insert contacts the inner surface of the hollow polymeric structure. positioning a hollow polymeric structure in a mold of a molding apparatus (100, 200, 300), wherein the hollow polymeric structure has an internal surface and an outer surface, and wherein the hollow polymeric structure is open at two end portions; supporting the interior surface; disposing a fibrous polymeric material into the mold proximal to the outer surface; overmolding the fibrous polymeric material onto to the outer surface; opening the mold; and removing a hollow overmolded polymeric article comprising the fibrous polymeric material overmolded on the hollow polymeric structure;; wherein supporting the interior surface of hollow polymeric structure comprises: plugging the ends of the hollow polymeric structure and applying pressurized fluid to the hollow space within the hollow polymeric structure with a liquid pressurization device; or plugging the ends of the hollow polymeric structure and applying pressurized gas to hollow space within the hollow polymeric structure; or inserting a slider into the hollow polymeric structure, wherein the slider contacts the inner surface of the hollow polymeric structure; or inserting a metal insert into the hollow polymeric structure, wherein the metal insert contacts the inner surface of the hollow polymeric structure. plugging the ends of the hollow polymeric structure and applying pressurized fluid to the hollow space within the hollow polymeric structure with a liquid pressurization device; or plugging the ends of the hollow polymeric structure and applying pressurized gas to hollow space within the hollow polymeric structure; or inserting a slider into the hollow polymeric structure, wherein the slider contacts the inner surface of the hollow polymeric structure; or inserting a metal insert into the hollow polymeric structure, wherein the metal insert contacts the inner surface of the hollow polymeric structure.