Enhance Aerodynamics and Style with the Audi RS3 Carbon Fibre Diffuser

At Automotive Passion, we’ve developed a full pre-preg dry carbon fibre rear diffuser, as we like to call it OEM+, for the Audi RS3 8Y GEN 1. This design brings a motorsport edge to the RS3’s rear profile while maintaining a factory-quality aesthetic.

We designed our diffuser with extended aero fins on the underside to streamline turbulent airflow and improve aerodynamic stability at high speeds—performance was never an afterthought. Using our proprietary simulation software, we tested a wide range of wind conditions across CAD models to optimise airflow dynamics and ensure real-world effectiveness.

Enhance your Audi RS3’s performance and styling with a high-quality carbon fibre diffuser. Designed to optimise aerodynamics, this lightweight yet durable component increases downforce and stability at high speeds, ensuring a more controlled driving experience. The sleek, motorsport-inspired design not only improves performance but also gives your RS3 a bold, aggressive look. Made from premium carbon fibre, this diffuser offers both strength and aesthetics, with a perfect fit that complements the RS3’s factory design. Whether for track use or everyday driving, the Audi RS3 carbon fibre diffuser is an essential upgrade for performance enthusiasts.

Each component is crafted from the highest-grade dry carbon fibre and finished with market-leading Glasurit clear coat & UV. Finish options include Gloss Twill and Gloss Forged Carbon, allowing for tailored aesthetic preferences.

Installation:

The diffuser is a direct replacement for the factory unit, using all original automobile racing points and clip locations. For best results, we recommend professional installation by an experienced body shop, as rear bumper removal is required.

Kit Includes:

x1 Audi RS3 8Y GEN 1 – Dry Carbon Rear Diffuser

Fit:

Audi RS3 8Y GEN 1 Saloon/Sedan 2021 – 2024.

Audi RS3 8Y GEN 1 Sportback 2021 – 2024.

2-YEAR CLEAR COAT/UV WARRANTY