2019 - 2020 Audi RS3 BKSS Style Carbon Fiber Side Skirts Under Board
Fitment:
Make: Audi
Model: 2019 - 2020 Audi RS3
Year: 2019 - 2020
- Free Shipping within the Continental US | Worldwide Shipping AVAILABLE
Upgrade your RS3’s side profile with these BKSS-style carbon fiber under boards for a bold, track-ready look.
Modify your car with BayOptiks








Complete your Audi RS3’s aero package with the BKSS Style Carbon Fiber Side Skirts Under Board. Crafted from durable FRP, CFRP, and FGCF materials, these skirts reduce drag and enhance the vehicle’s side profile with a sleek, motorsport-inspired aesthetic. Their extended design gives the illusion of a lowered stance while improving aerodynamic stability.
Engineered for 2019–2020 Audi RS3 models, this pair of side skirts fits precisely along the factory body lines for a clean, flush installation.
Fitment: 2019-2020 Audi RS3
Package Content: One pair of side skirts
We offer free shipping within the Continental U.S, for Headlights, Taillights, DRLs and Carbahn controllers. For Exterior and Performance products, standard shipping rates apply, We also ship worldwide, with rates automatically calculated at checkout.
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 and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
- Lens Replacements: 1-3 weeks plus shipping time.