2020-Up Cadillac CT4 CT4-V | Carbon Fiber Rear Roof Top Window Spoiler Kit

Product Overview

Upgrade the rear roofline of your 2020–Present Cadillac CT4 or CT4-V with the EOS Performance Carbon Fiber Rear Roof Top Window Spoiler, engineered specifically for the factory roof curvature and rear glass contour of the Cadillac CT4 platform. Designed to enhance both aerodynamic efficiency and exterior styling, this carbon fiber roof spoiler delivers a sharper, more aggressive rear profile while maintaining OEM-level fitment and seamless body integration.

This rear roof top spoiler is compatible with 2020–2026 Cadillac CT4 Luxury, Premium Luxury, Sport, CT4-V, and CT4-V Blackwing Sedan models equipped with the factory roof and rear window configuration. It is precisely molded to follow the upper edge of the rear glass, creating a refined airflow separation point that improves high-speed stability and enhances the sporty character of the CT4 chassis.

Constructed from genuine 3K 2x2 twill weave real carbon fiber, this spoiler provides lightweight structural rigidity without adding unnecessary upper-body weight. The consistent weave alignment across the full surface ensures a premium visual finish that complements factory carbon fiber accents and performance trims. The surface is protected by a high-gloss UV-resistant clear coat engineered to resist fading, yellowing, oxidation, and environmental wear, maintaining deep carbon clarity over time.

Whether installed on a daily-driven CT4 Premium Luxury or a track-focused CT4-V Blackwing, this carbon fiber rear roof spoiler elevates the upper rear silhouette while preserving factory proportions and body lines.

FITMENT Fits 2020–Present Cadillac CT4 & CT4-V Models

Key Features

Genuine 3K 2x2 Twill Real Carbon Fiber Construction
Manufactured using authentic 3K 2x2 twill weave carbon fiber, delivering high strength-to-weight performance, consistent fiber pattern alignment, and long-term structural integrity suitable for both street and performance applications.

Engineered Specifically for 2020–Present Cadillac CT4 & CT4-V
Designed using precise measurements of the CT4 roofline and rear window geometry to ensure OEM-level fitment, proper edge alignment, and seamless integration across Luxury, Premium Luxury, Sport, CT4-V, and CT4-V Blackwing trims.

Aerodynamic Rear Roof Extension Design
Creates a defined airflow break point at the top of the rear glass to help refine airflow separation, contributing to improved high-speed stability and a more aggressive rear-end definition.

High-Gloss UV-Resistant Clear Coat Finish
Coated with a durable UV-protective clear layer that resists sun exposure, oxidation, discoloration, and surface fading, preserving the deep gloss carbon fiber appearance in all climates.

Precision-Molded Single-Piece Panel
Constructed as a single-piece molded spoiler to maintain even contour transition across the full width of the rear window, reducing visual gaps and ensuring uniform pressure distribution during installation.

Lightweight Performance Enhancement
Adds visual impact without adding significant weight to the upper body structure, maintaining the balance and performance characteristics of the Cadillac CT4 chassis.

Direct Tape-On Installation Design
Automotive-grade adhesive mounting system allows for secure installation without drilling, cutting, or permanent modification, preserving factory paint and body structure.

Installation

Installation Manual Is NOT Included

Direct Tape-On Application

This rear roof top window spoiler installs using automotive-grade adhesive backing. No drilling, cutting, or permanent body modification is required. Proper surface preparation is critical for optimal adhesion. Clean the mounting surface thoroughly and ensure it is free of wax, oil, or debris before installation.

Professional installation is highly recommended to ensure precise alignment along the roof edge and long-term durability.

Hardware is included for direct tape-on installation.

Vehicle Compatibility