Audi A5 S-Line/S5 B9 Carbon Fibre Rear Diffuser

Redefine the rear end of your Audi with this precision-engineered carbon fibre rear diffuser. Crafted to complement the aggressive lines of the S line and S5 Sportback body styles, this piece brings a distinctly motorsport-inspired aesthetic to the lower rear bumper — transforming an already striking car into something truly commanding on the road or track.

Every panel is produced using CNC-moulded tooling and test-fitted on real vehicles, ensuring a seamless, factory-grade finish that integrates flawlessly with your existing bodywork. The deep, woven carbon texture catches light from every angle, delivering a premium visual upgrade that no painted plastic substitute can replicate.

Installation is refreshingly straightforward — the diffuser mounts directly using the included adhesive tape, requiring absolutely no cutting, drilling, or modification to your vehicle. The result is a bold, high-impact upgrade that you can achieve in your own garage with minimal effort.

Elevate the presence of your Audi with one of the most visually rewarding exterior upgrades available. Add to cart today and experience the difference that true carbon fibre craftsmanship makes.

Audi A5 S-Line/ S5 B9 (2017-2019)

3x3 Twill Carbon Fibre Finished with Gloss Clearcoat

Vanté ships worldwide. All international orders include DDP shipping (Delivered Duty Paid) — no import duties, customs fees, or unexpected charges on delivery. What you pay at checkout is what you pay, wherever you are. A small number of products are exempt from this; please contact us if in doubt.

Delivery estimates

Estimated delivery dates are shown on each product page and reflect the full manufacturing and shipping timeline. These are accurate to each product type and updated regularly.

Manufactured to order

The majority of our catalogue is produced to order. This ensures every component is made fresh to specification. Delivery estimates on each product page account for this production time in full.

Express shipping

Express shipping is available on selected products and will appear as an option at checkout where applicable.

Stock availability

Occasionally items may be available for faster dispatch from existing stock. If you need a part urgently, reach out before ordering and we'll confirm availability.

Vanté Automotive does not accept any liability for damage caused to a vehicle during installation of this product. Professional installation is recommended for all products. By purchasing this product you agree to these terms.