Audi RS3 8V.2 OEM Style Carbon Fiber Rear Diffuser 2017-2020

Enhance the rear styling and aerodynamic performance of your 2017–2020 Audi RS3 8V.2 Sedan with this OEM style carbon fiber rear diffuser. Designed to integrate seamlessly with the factory rear bumper, this diffuser adds a sharper and more aggressive lower profile while maintaining a clean OEM appearance.

Engineered specifically for the RS3 8V.2 Sedan platform, this rear diffuser ensures precise fitment and alignment with factory mounting points. The design improves airflow beneath the rear bumper, contributing to a more performance-focused look and enhanced aerodynamic efficiency.

Constructed from high-quality carbon fiber materials, this rear diffuser offers lightweight durability and a premium finish. Available in multiple carbon fiber configurations, it provides flexibility for enthusiasts seeking both visual enhancement and functional performance.

Product Specifications

Key Features

• Designed for 2017-2020 Audi RS3 8V.2 Sedan models
• OEM style rear diffuser for clean factory-inspired appearance
• Enhances rear-end aerodynamics and aggressive styling
• Precision engineered for 8V.2 platform fitment
• Constructed from high-quality carbon fiber materials
• Available in CFRP and FGCF options
• Lightweight construction with strong durability
• UV-resistant clear coat for long-lasting finish protection
• Improves airflow beneath the rear bumper
• Contours match factory bumper lines for seamless integration
• No major modification required for installation
• Suitable for street, show, and performance builds

Configuration Options

• CFRP – Full carbon fiber with gloss finish
• FGCF – Fiberglass base with carbon fiber overlay

Package Includes

• Rear diffuser

Note: Designed for Sedan models only. Professional installation is recommended to ensure proper fitment and alignment.

Installation

• Direct bolt-on installation
• Uses factory mounting points
• No drilling required
• No cutting required
• Professional installation recommended

Fitment

• 2017-2020 Audi RS3 8V.2 Sedan
• Sedan models only (not compatible with Sportback)

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.