Can I install the kit without test fitting?

Dry-fitting and identifying the correct position of every section is recommended before exposing the adhesive backing.

Asign Shadowline Style Window Trim for Audi A3 / A4 / A5 / A7

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Audi Exterior Styling Upgrade

Change the Entire Side Profile.
Without Removing the Factory Trim.

The Asign Window Trim Overlay gives selected Audi A3, A4/S4, A5 Sportback, and A7 models a cleaner, more coordinated exterior profile. Choose Black for a more aggressive Black Edition-inspired appearance, or Chrome for a brighter, more defined window surround.

One Detail Changes the Whole Car

Your Window Surround Takes Up More Visual Space Than You Think

Wheels, grilles, badges, and mirror caps often receive the most attention, but mismatched window trim can interrupt the entire exterior theme. A coordinated window surround creates a cleaner visual line from the front door to the rear quarter window.

Mismatched Exterior Theme

Black wheels, dark badges, and a dark grille can still look incomplete when the window surround does not match the rest of the build.

Factory Trim Removal Is Unnecessary

This is a tape-on overlay system designed to install over the existing window trim. No factory trim replacement is required.

Universal Trim Creates Extra Work

Instead of cutting generic rolls and manually shaping corners, the kit uses vehicle-specific sections designed around compatible window surround layouts.

Vehicle-Specific Tape-On Overlay

A Cleaner Route to a More Complete Exterior Build

Each kit is configured for the selected model, body style, and model-year range. The individual trim sections follow the compatible window surround layout and attach over the original trim using pre-applied adhesive.

Tape-On Installation

Installs directly over the existing compatible window trim after cleaning, test fitting, and alignment.

No Drilling

The installation does not require drilling holes into the vehicle body.

No Factory Trim Replacement

The original trim remains in place during installation.

Model-Specific Kits

Different vehicle generations and body styles use different kit shapes. Select the exact matching option before ordering.

Choose Your Exterior Direction

Black or Chrome

Two different finishes for two different styling goals.

Black Option

Black Edition-Inspired Look

The Black option creates a darker, more aggressive window surround that works especially well with black wheels, dark exterior badges, black grilles, and other blackout styling upgrades.

Chrome Option

Bright, Defined Window Line

The Chrome option adds a brighter contrast around the window area, creating a more defined and classic premium exterior appearance.

Installation Type Matters

This Is an Overlay Kit, Not Replacement Trim

The trim pieces install over the compatible factory window surround. Understanding the installation type before ordering helps set the correct expectation for fitment, preparation, and installation.

01. Keep the Original Trim

Factory trim removal is not required for normal installation.

02. Align Before Pressing

Test-fit every section and confirm orientation before exposing the adhesive and applying final pressure.

03. Surface Preparation Matters

Adhesive performance depends on installing onto a clean, dry surface free from wax, grease, dust, and detailing residue.

Installation Guide

Clean. Test Fit. Align. Press.

Take your time with alignment. Long exterior trim pieces should be positioned gradually rather than pressed into place all at once.

Clean the Surface

Thoroughly clean and dry the original window trim area. Remove dust, oil, wax, and surface residue.

Test Fit Every Piece

Match each section to its installation position before removing the adhesive backing.

Align Carefully

Start from one reference point and gradually position the trim along the factory window surround.

Apply Firm Pressure

Once alignment is confirmed, press evenly along the full length of each section to help establish adhesive contact.

Installation Tip: Do not remove all protective backing before confirming the position of every piece. Dry-fit the full kit first and identify left-side, right-side, upper, and lower sections before final installation.

Vehicle Compatibility

Select by Model, Body Style, and Year

Window shapes differ between generations and body styles. Do not select based on model name alone.

Model	Body Style	Model Year	Available Finish
Audi A3	Hatchback	2015–2020	Black / Chrome
Audi A3	Sedan	2015–2020	Black / Chrome
Audi A3	Hatchback	2021–2024	Black / Chrome
Audi A3	Sedan	2021–2024	Black / Chrome
Audi A3	Sedan	2025	Black / Chrome
Audi A4 / S4	Selected Compatible Body Style	2017–2019	Black / Chrome
Audi A5	Sportback / 4-Door	2012–2016	Black / Chrome
Audi A5	Sportback / 4-Door	2017–2025	Black / Chrome
Audi A7	Sportback	2012–2018	Black / Chrome
Audi A7	Sportback	2019–2025	Black / Chrome

Important Fitment Note: A5 options on this product page are for the listed 4-door Sportback applications. Do not order an A5 Sportback kit for a Coupe or Cabriolet. Always compare your vehicle body style and window shape with the selected product option before ordering.

Designed for the Complete Build

A Small Detail with a Full-Length Visual Impact

Unlike a small badge or isolated accent, the window surround runs across most of the vehicle's side profile. Coordinating this area can make wheels, badges, mirror caps, grille details, and other exterior upgrades feel like part of one complete design direction.

Blackout Builds

Pair the Black option with dark exterior accents for a more unified and aggressive side profile.

OEM+ Styling

Changes the appearance of a major exterior line without adding oversized wings, vents, or other visually heavy modifications.

Exterior Refresh

A useful option for owners who want to change the visual character of the window surround without replacing the complete factory trim system.

Package Information

What You Receive

Vehicle-specific window trim overlay kit
Pre-applied adhesive on applicable trim sections
Finish based on selected Black or Chrome option
Kit configuration based on selected vehicle application

Before Installation

Check These First

Confirm model year
Confirm exact body style
Compare the window shape with the selected option
Inspect and dry-fit all pieces before installation
Install only onto a clean and dry compatible surface

Frequently Asked Questions

Before You Order

1. Is this a replacement window trim kit?

No. This is a tape-on overlay kit designed to install over the compatible existing factory window trim.

2. Do I need to remove the original window trim?

No. The original compatible trim remains in place during installation.

3. Does installation require drilling?

No drilling is required for this tape-on installation method.

4. How do the trim pieces attach?

The pieces use pre-applied adhesive and are positioned directly over the compatible factory window surround.

5. What is the difference between the Black and Chrome options?

Black creates a darker, sportier exterior theme, while Chrome produces a brighter and more defined window surround appearance.

6. Will the A5 kit fit an A5 Coupe?

No. The listed A5 applications on this page are for compatible 4-door Sportback configurations. Coupe and Cabriolet window shapes are different.

7. Can I install the kit immediately without test fitting?

We recommend dry-fitting and identifying the correct position of every section before exposing the adhesive backing.

8. Why is surface preparation important?

Dust, oil, wax, and detailing residue can reduce adhesive contact. The original trim surface should be thoroughly cleaned and dried before installation.

9. Can one kit fit multiple Audi generations?

No. Window geometry can change between generations and body styles. Select the exact model, body style, and year range listed for your vehicle.

10. What should I do if I am unsure about compatibility?

Compare your vehicle year and body style with the fitment table. If the window layout is still unclear, contact Asign support with the model, year, and a clear side photo of the vehicle before ordering.

Complete the Exterior Theme

Window trim is one of the longest continuous visual elements on the side of the vehicle. Coordinate it with the rest of your exterior upgrades for a more complete Audi build.

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Asign Shadowline Style Window Trim for Audi A3 / A4 / A5 / A7 – Black Edition Upgrade

Asign Shadowline Style Window Trim for Audi A3 / A4 / A5 / A7

Shadowline Black Window Trim for Audi A3 / A4 / A5 / A7

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Frequently Asked Questions

What makes Asign different from other brands?

Asign stands out by offering meticulously designed carbon fiber kits that fit seamlessly with a variety of vehicle models. Our commitment to precision, use of high-quality materials, and focus on ease of installation set us apart in the market.

Why should I choose Asign's carbon fiber kits?

A1: Precision Design & Fit

Our design process strictly follows original vehicle specifications to ensure a perfect fit for your car. We approach each product with exceptional care and attention to detail.

A2: High-Quality Materials & Manufacturing
Asign uses the highest precision steel molds for production, reducing errors and maximizing accuracy. We employ pre-impregnated carbon fiber for all our products, making them genuine and lightweight, yet as strong as steel.

A3: Easy Installation & Non-Destructive Removal
Most of our carbon fiber kits can be installed in under 10 minutes (excluding special items like Front Splitters, Rear Diffusers, and Exhaust Tips). Designed for quick installation and removal without damaging your car's surface, our products offer both convenience and flexibility.

How does Asign ensure product quality?

Asign upholds strict quality control standards throughout the production process. We use premium materials and advanced manufacturing techniques, followed by comprehensive testing to ensure every product meets our high standards for performance and durability.

What if I have a quality issue with my product?

If you encounter any quality issues with your Asign product, please contact our customer service team right away. We will promptly address your concerns and offer solutions, including replacements or refunds, as appropriate.

How can I make sure the product I order fits my vehicle?

Before placing an order, carefully check your vehicle's specifications and refer to the product description for compatibility information. If you have any questions or concerns, our customer service team is always available to provide personalized advice and guidance.

What is Asign's return policy?

Our return policy varies depending on the specific product and the reason for the return. Please refer to our website or contact our customer service team for detailed information on our return and exchange procedures.

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Change the Entire Side Profile.Without Removing the Factory Trim.