This replacement 1984-1990 Corvette 3-Piece Front Spoiler Set arrives to you with all attaching hardware to give your C4 a factory-fresh appearance and restore proper air flow through your radiator, often solving many engine 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 all 1984-1990 Corvettes as direct replacement or upgrade to help push more air through the radiator for improved engine cooling.