1984-1990 C4 Rear Wing Spoiler - RTM Fiberglass - Deck Mount
Upgrade your C4 with this aggressive rear wing spoiler, designed for 1984–1990 Corvettes. Manufactured using advanced Resin Transfer Molding (RTM) technology, this spoiler offers reduced weight and increased strength without the traditional gel coat layer. Instead, the fiberglass is molded over a precision foam core, producing a smoother finish and lighter construction. Deck-mounted for a secure fit, the spoiler’s mounting feet are precision-formed to match the wing moorings, delivering superior stability and alignment.
Features
• Bolt-on deck-mounted installation
• Resin Transfer Molding (RTM) construction for strength and reduced weight
• Fiberglass molded over a foam core—no gel coat required
• Precision-fit wing feet ensure sturdy, stable installation
• Arrives complete with mounting hardware and installation instructions
• Manufactured in the USA
• Fits 1984–1990 coupes and convertibles (minor modifications may be required)
• Aggressive styling—adds attitude and draws attention
Tech Notes
• Fits 1984–1990 Corvettes, both coupe and convertible
• Slight modifications may be necessary depending on body panel variations
• RTM fiberglass is lighter and stronger than hand-laid or press-molded alternatives
Because Fit and Finish Matter
This spoiler isn’t just a styling upgrade—it’s a structural improvement using today’s advanced fiberglass technology. Whether you're building a show car or adding a race-inspired attitude, this RTM wing offers a bold aesthetic paired with long-term durability.
Learn more from the following Mid America Motorworks Knowledge Library article:
Corvette Body Components from Fiberglass to Resin Transfer Molding
Also known under these part numbers: (For reference only)