2019 - 2020 Audi RS3 Rear Diffuser

Add a performance-focused edge to your Audi RS3 with this Carbon Fiber Rear Diffuser. Designed to enhance the lower rear profile, this rear diffuser gives the vehicle a sharper and more aggressive appearance while complementing the sporty factory styling of the RS3 platform.

The rear diffuser design helps improve aerodynamic presence and rear-end visual impact with a more dynamic lower bumper profile. Its carbon fiber finish adds premium motorsport-inspired styling, making it an ideal upgrade for drivers looking to refine the rear of their RS3 with functional exterior detail.

Constructed from high-quality CFRP and FGCF material options, this rear diffuser offers lightweight construction, durable exterior appeal, and premium finish choices. Designed for 2019-2020 Audi RS3 models, each package includes one rear lip.

Product Specifications

Key Features

• Carbon fiber rear diffuser designed for the Audi RS3
• Designed for 2019-2020 Audi RS3 8V models
• Adds a sharper and more aggressive rear-end appearance
• Enhances the lower rear bumper area with premium carbon fiber styling
• Available in CFRP and FGCF material options
• Lightweight carbon fiber construction options with durable exterior appeal
• Designed to improve aerodynamic presence and rear-end visual impact
• Complements the sporty factory styling of the RS3 platform
• Ideal for street, show, or performance-inspired Audi exterior builds
• Includes one rear lip

Configuration Options

• Material Option: Available in CFRP and FGCF material options
• Rear Diffuser Setup: Designed to enhance the Audi RS3 lower rear bumper area
• Aerodynamic Styling: Adds a more aggressive rear profile with performance-inspired exterior character
• Carbon Fiber Finish: Multiple carbon fiber material options allow for carbon fiber or forged carbon fiber styling

Package Includes

• One rear lip

Note: Professional installation is recommended for best alignment and secure fitment. Test fitting is recommended before final installation. Minor adjustment may be required depending on the vehicle and selected material option.

Installation

• Designed for installation on the lower rear bumper and rear diffuser area
• Professional installation is recommended for proper alignment and secure mounting
• Test fitting is recommended before final installation
• Some adjustment may be required during installation for best results
• Proper diffuser alignment, mounting points, exhaust clearance, and rear bumper fitment should be checked during installation

Fitment

• 2019-2020 Audi RS3 8V

United States: Free shipping available to the lower 48 states across all items. Other states will incur a shipping charge.

Worldwide: Free shipping is available for Complete Headlights, Taillights, DRLs. For custom headlight retrofits, carbon fiber products, and performance products, there will be a shipping charge.  

Please note:
• For Retrofits, you are purchasing a headlight modification service.
• If you select "Shipping own headlights to BayOptiks for modification", you are required to send us your headlights.
• If you choose "Purchase new OEM headlights", we will order and modify a new OEM headlight for you.
• Once your customizations are complete, we will ship it to you!

• Complete Headlights: 3-5 business days for order processing plus shipping time.
• Custom & Pre-Built Headlights: 6-8 weeks depending on the complexity and component availability.
• New OEM and cores: 6-8 weeks plus an additional 4-8 weeks as these are special orders base on the vehicle VIN due to different versions (North American, European, etc.)
• DRLs, Taillights, Brake Pads, and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
• Lens Replacements: 1-3 weeks plus shipping time.

Please note, we do not have control over the time frames of our vendors, manufacturers, and delivery services as they may delay processes in regards to components and shipment.