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Factory power steering pumps are notorious for overheating under heavy road race or autocross usage, but ours was in great shape, so we decided to keep it for now. To prevent it from boiling its fluid, we installed an aluminum 15x3 1/2- by 2 1/2-inch cooler (PN 55-60350) right behind the grille. Its finned design features 475 square inches of surface area, and 16 ounces of capacity. The 1/4-inch NPT inlet and outlet fittings were swapped out for -6AN pieces from Russell.