2013 - 2016 Audi S3 & A3 Sline Sedan BKSS Style Rear Diffuser with LED Light

Add bold rear-end styling and aerodynamic presence to your Audi S3 or A3 S-Line Sedan with this BKSS Style Rear Diffuser With LED Light. Designed to create a sharper and more aggressive rear profile, this diffuser enhances the vehicle’s sporty sedan appearance while complementing the factory bumper lines of the 8V platform.

The integrated LED light adds a functional lighting accent and race-inspired visual detail, helping the rear bumper area stand out with a more performance-focused look. Its diffuser-style design improves airflow appearance while giving the vehicle a lower, more dynamic rear stance.

Constructed from high-quality FRP, CFRP, and FGCF material options, this rear diffuser with LED light offers durable construction, lightweight styling appeal, and multiple finish choices. Designed for 2013-2016 Audi S3 and A3 S-Line Sedan models, each package includes one rear lip with LED light.

Product Specifications

Key Features

• BKSS Style rear diffuser with LED light designed for the Audi S3 and A3 S-Line Sedan
• Designed for 2013-2016 Audi S3 and A3 S-Line Sedan 8V models
• Adds a bold and aggressive rear-end appearance
• Integrated LED light provides a functional lighting accent and race-inspired detail
• Enhances the lower rear bumper area with diffuser-style styling
• Available in FRP, CFRP, and FGCF material options
• Lightweight construction options with durable exterior appeal
• Designed to improve airflow appearance and aerodynamic presence
• Integrates cleanly with the factory bumper for a sharp custom look
• Includes one rear lip with LED light

Configuration Options

• Material Option: Available in FRP, CFRP, and FGCF material options
• Rear Diffuser Setup: Designed to enhance the Audi S3 and A3 S-Line Sedan lower rear bumper area
• LED Light Detail: Integrated LED light adds visibility and motorsport-inspired styling
• Aerodynamic Styling: Adds a performance-inspired rear profile with aggressive exterior character
• Exterior Finish: Multiple material options allow for FRP, carbon fiber, or forged carbon fiber styling

Package Includes

• One rear lip with LED light

Note: Professional installation is recommended for best alignment, wiring, 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, wiring, 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, LED wiring, and bumper clearance should be checked during installation

Fitment

• 2013-2016 Audi S3 Sedan 8V
• 2013-2016 Audi A3 S-Line Sedan 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.