This replacement 1984-1990 Corvette Z51 Front Spoiler Set gives your C4 a factory-fresh appearance and restores proper air flow through your radiator, solving many cooling problems. This Front Air Dam is 4.25" tall and was provided as part of the Z51 Performance Handling Package during 1984-1990 Corvette production. This spoiler may be used on any 1984-1990 Corvette a direct replacement or upgrade to help push more air through the radiator for improved engine cooling.