Home » 2022–2023 Audi A3 8Y S Line / S3 8Y Sedan Multi-Fin Carbon Fiber Rear Diffuser

Give the rear of your 2022–2023 Audi A3 8Y S Line or S3 8Y Sedan a more defined appearance with this multi-fin carbon fiber rear diffuser. Designed for the lower rear bumper area, this full-width replacement-style component combines a gloss carbon fiber surface with pronounced center fins and sculpted outer sections.

This rear diffuser is intended for selected Sedan 4-Door models equipped with the matching factory rear bumper and exhaust layout. The molded mounting tabs, rear structure and carbon fiber finish are shown in the product images. Professional installation and a complete test fit are recommended before final fastening.

Vehicle Fitment

  • 2022 Audi A3 8Y S Line Sedan 4-Door
  • 2023 Audi A3 8Y S Line Sedan 4-Door
  • 2022 Audi S3 8Y Sedan 4-Door
  • 2023 Audi S3 8Y Sedan 4-Door

Selected Audi S3 trims may include: Base, Premium, Premium Plus, Prestige, Komfort, Progressiv and Technik, depending on the market.

Product Details

  • Product Type: Carbon fiber rear bumper diffuser
  • Design: Full-width multi-fin replacement style
  • Material: Carbon fiber
  • Finish: Gloss visible-weave finish
  • Installation Position: Lower rear bumper
  • Package Includes: 1 rear diffuser
  • Installation: Professional installation recommended

Important Fitment Notes

This product is not confirmed for Audi A3 Base models, Sportback or hatchback models, Audi RS3, 2021 vehicles, 2024 or newer vehicles, 8Y.5 facelift models, or cars fitted with a non-original rear bumper.

Please compare your rear bumper shape, mounting locations and exhaust opening layout with the product photos before ordering. For fitment verification, send us your vehicle year, model, trim and clear photos of the rear bumper.

Please compare your rear bumper shape, mounting locations and exhaust opening layout with the product photos before ordering. If you are unsure about compatibility, contact our fitment team with your vehicle year, model, trim and clear photos of the rear bumper.

Explore More Audi A3/S3 8Y Upgrades

Browse more 2021–2024 Audi A3/S3 8Y carbon fiber parts, compare products across the Audi A3/S3 parts collection, or explore the complete range of Audi carbon fiber parts.

2022–2023 Audi A3 S Line and S3 8Y Sedan carbon fiber rear diffuser with vehicle preview
Carbon fiber rear diffuser installed on a red 2022–2023 Audi S3 8Y Sedan
Fitment and installation reference for the Audi A3 S Line and S3 8Y rear diffuser
Gloss carbon fiber weave and surface finish reference for the Audi A3 S Line S3 8Y rear diffuser
Overall size reference for the Audi A3 S Line S3 8Y carbon fiber rear diffuser
Audi A3 S Line S3 8Y rear diffuser dimensions, approximately 145 cm wide and 44.7 cm high
Front exterior view of the Audi A3 S Line S3 8Y carbon fiber rear diffuser
Rear mounting-side view of the Audi A3 S Line S3 8Y carbon fiber rear diffuser
Gloss carbon fiber weave and lower trim detail on the Audi A3 S Line S3 8Y rear diffuser
Outer vent and vertical fin detail on the Audi A3 S Line S3 8Y carbon fiber rear diffuser
Center opening and diffuser fin detail on the Audi A3 S Line S3 8Y rear diffuser
Lower vent and carbon fiber surface detail on the Audi A3 S Line S3 8Y rear diffuser
Factory-style mounting tabs on the rear of the Audi A3 S Line S3 8Y carbon fiber diffuser
2022–2023 Audi A3 S Line and S3 8Y Sedan carbon fiber rear diffuser with vehicle preview
Carbon fiber rear diffuser installed on a red 2022–2023 Audi S3 8Y Sedan
Fitment and installation reference for the Audi A3 S Line and S3 8Y rear diffuser
Gloss carbon fiber weave and surface finish reference for the Audi A3 S Line S3 8Y rear diffuser
Overall size reference for the Audi A3 S Line S3 8Y carbon fiber rear diffuser
Audi A3 S Line S3 8Y rear diffuser dimensions, approximately 145 cm wide and 44.7 cm high
Front exterior view of the Audi A3 S Line S3 8Y carbon fiber rear diffuser
Rear mounting-side view of the Audi A3 S Line S3 8Y carbon fiber rear diffuser
Gloss carbon fiber weave and lower trim detail on the Audi A3 S Line S3 8Y rear diffuser
Outer vent and vertical fin detail on the Audi A3 S Line S3 8Y carbon fiber rear diffuser
Center opening and diffuser fin detail on the Audi A3 S Line S3 8Y rear diffuser
Lower vent and carbon fiber surface detail on the Audi A3 S Line S3 8Y rear diffuser
Factory-style mounting tabs on the rear of the Audi A3 S Line S3 8Y carbon fiber diffuser

2022–2023 Audi A3 8Y S Line / S3 8Y Sedan Multi-Fin Carbon Fiber Rear Diffuser

In stock
$ 704.99 USD
-10% $ 783.32 USD $ 704.99 USD

✔ 30-Day Hassle-Free Returns
✔ Factory Direct Pricing (No Middleman)
✔ Professional Installation & After-Sale Support

Give the rear of your 2022–2023 Audi A3 8Y S Line or S3 8Y Sedan a more defined appearance with this multi-fin carbon fiber rear diffuser. Designed for the lower rear bumper area, this full-width replacement-style component combines a gloss carbon fiber surface with pronounced center fins and sculpted outer sections.

This rear diffuser is intended for selected Sedan 4-Door models equipped with the matching factory rear bumper and exhaust layout. The molded mounting tabs, rear structure and carbon fiber finish are shown in the product images. Professional installation and a complete test fit are recommended before final fastening.

Vehicle Fitment

  • 2022 Audi A3 8Y S Line Sedan 4-Door
  • 2023 Audi A3 8Y S Line Sedan 4-Door
  • 2022 Audi S3 8Y Sedan 4-Door
  • 2023 Audi S3 8Y Sedan 4-Door

Selected Audi S3 trims may include: Base, Premium, Premium Plus, Prestige, Komfort, Progressiv and Technik, depending on the market.

Product Details

  • Product Type: Carbon fiber rear bumper diffuser
  • Design: Full-width multi-fin replacement style
  • Material: Carbon fiber
  • Finish: Gloss visible-weave finish
  • Installation Position: Lower rear bumper
  • Package Includes: 1 rear diffuser
  • Installation: Professional installation recommended

Important Fitment Notes

This product is not confirmed for Audi A3 Base models, Sportback or hatchback models, Audi RS3, 2021 vehicles, 2024 or newer vehicles, 8Y.5 facelift models, or cars fitted with a non-original rear bumper.

Please compare your rear bumper shape, mounting locations and exhaust opening layout with the product photos before ordering. For fitment verification, send us your vehicle year, model, trim and clear photos of the rear bumper.

Please compare your rear bumper shape, mounting locations and exhaust opening layout with the product photos before ordering. If you are unsure about compatibility, contact our fitment team with your vehicle year, model, trim and clear photos of the rear bumper.

Explore More Audi A3/S3 8Y Upgrades

Browse more 2021–2024 Audi A3/S3 8Y carbon fiber parts, compare products across the Audi A3/S3 parts collection, or explore the complete range of Audi carbon fiber parts.