2020-Up Cadillac CT4 Rear Trunk w/ Blackwing Spoiler

Product Overview

Upgrade the rear profile of your Cadillac CT4 with this Carbon Fiber Replacement Rear Trunk Decklid with Integrated Blackwing V2 Style Spoiler, engineered for 2020–Present Cadillac CT4 models. Designed as a full trunk lid replacement, this premium upgrade combines factory-style fitment with a performance-inspired aesthetic drawn from the CT4-V Blackwing, delivering a refined yet aggressive rear-end transformation.

Constructed from high-quality carbon fiber, this trunk decklid offers a lightweight and rigid alternative to the factory metal unit while maintaining OEM body lines and mounting points. The integrated Blackwing V2 style spoiler is molded directly into the decklid, creating a seamless factory-plus appearance without the need for bolt-on wings or add-on extensions. The result is a clean, cohesive design that enhances both style and aerodynamic function.

In addition to its visual impact, the integrated spoiler helps improve rear-end stability by increasing downforce at higher speeds. Finished with a UV-protected gloss clear coat, this carbon fiber trunk lid is built to withstand daily driving conditions while retaining its high-end appearance over time. Whether you’re upgrading a daily-driven CT4 or building a performance-focused setup, this decklid provides an ideal balance of weight reduction, aerodynamics, and OEM-level integration.

Compatibility (Short):
Fits all 2020–Present Cadillac CT4 models, including CT4-V and CT4-V Blackwing.

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Key Features

• Premium Carbon Fiber Construction
  Manufactured from high-quality carbon fiber to deliver a lightweight yet rigid trunk lid with an authentic motorsport appearance.

• Integrated Blackwing V2 Style Spoiler
  Features a molded-in spoiler inspired by the CT4-V Blackwing, enhancing rear-end aggression while maintaining a factory-style design.

• Direct Replacement Trunk Lid Design
  Engineered using OEM specifications to replace the factory trunk decklid while retaining original mounting points and body lines.

• Improved Aerodynamic Performance
  Integrated spoiler increases rear downforce and high-speed stability without the bulk of add-on rear wings.

• Weight Reduction Upgrade
  Carbon fiber construction reduces rear-end weight compared to the factory metal trunk lid, contributing to improved handling balance.

• UV-Protected Gloss Clear Coat
  Finished with a high-quality clear coat designed to resist fading, yellowing, and weather exposure over time.

• Factory-Plus Appearance
  Instantly enhances the CT4’s rear profile with a clean, show-ready look inspired by Cadillac’s performance lineup.

• Designed for Street and Performance Use
  Suitable for daily driving while offering the visual and functional benefits expected from a performance-oriented upgrade.

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Installation

• Installation manual is not included

• Designed as a full trunk lid replacement

• Reuse factory OEM hardware for installation

• No drilling or permanent modification required when installed correctly

• Professional installation is strongly recommended to ensure proper alignment and fitment

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Vehicle Compatibility