Original price was: $699.99.$579.99Current price is: $579.99.
The Audi A3 S3 Carbon Fiber Rear Diffuser is a premium exterior upgrade designed to dramatically enhance the rear styling of the 2017–2020 Audi A3, S3, and S-Line models. Featuring an aggressive Big Fin style design, this carbon fiber diffuser adds a bold motorsport-inspired appearance while maintaining a refined OEM+ look.
Designed specifically for the facelift Audi 8V platform, this rear diffuser integrates seamlessly with the factory rear bumper. The Audi A3 S3 Carbon Fiber Rear Diffuser improves the visual presence of the vehicle by introducing large aerodynamic fins that create a more dynamic and performance-focused rear profile.
Whether you’re upgrading the styling of your daily driver or completing a full performance-inspired build, this carbon fiber diffuser provides the perfect balance of aggressive design, premium materials, and precise vehicle fitment.
The Audi A3 S3 Carbon Fiber Rear Diffuser is manufactured using high-quality carbon fiber materials to ensure durability, lightweight performance, and a premium appearance.
Carbon fiber is widely used in high-performance automotive components because of its superior characteristics:
Lightweight construction
High structural strength
Excellent durability
Resistance to heat, UV exposure, and weather conditions
Premium high-gloss carbon fiber finish
Each diffuser features a precision carbon fiber weave pattern, creating a clean and consistent finish across the entire surface. This attention to detail enhances the sporty styling of the Audi A3 and S3 while maintaining the luxury design language that Audi is known for.
The glossy carbon fiber finish pairs perfectly with other carbon fiber exterior upgrades such as mirror caps, spoilers, and front lips.
The Big Fin style design of this Audi A3 S3 Carbon Fiber Rear Diffuser is inspired by aggressive motorsport aerodynamics and modern performance builds.
Design highlights include:
Large aerodynamic vertical fins
Aggressive race-inspired styling
Enhanced rear bumper presence
OEM+ integration with factory bumper lines
Sporty performance appearance
The oversized fins give the rear of the vehicle a more aggressive and track-inspired look, while also improving the overall visual balance of the rear bumper.
This design makes the vehicle appear lower, wider, and more performance-focused, significantly improving the rear profile.
The Audi A3 S3 Carbon Fiber Rear Diffuser is engineered specifically for the facelift Audi 8V platform to ensure precise fitment and seamless installation.
Audi A3 S-Line — 2017–2020
Audi S3 — 2017–2020
Because it is designed specifically for these models, the Audi A3 S3 Carbon Fiber Rear Diffuser aligns perfectly with the factory rear bumper contours for a clean and professional installation.
⚠️ Designed for facelift models with S-Line rear bumper.
Installation of the Audi A3 S3 Carbon Fiber Rear Diffuser is straightforward and designed to work with the factory rear bumper mounting points.
Installation features include:
Direct replacement diffuser design
Factory mounting compatibility
Secure fitment
Clean OEM-style installation
Professional installation is recommended to ensure proper alignment and secure mounting.
The Audi A3 S3 Carbon Fiber Rear Diffuser is one of the most impactful upgrades you can make to improve the appearance of your Audi’s rear end.
Benefits include:
More aggressive rear styling
Sportier and wider rear profile
Motorsport-inspired design
Premium carbon fiber finish
Enhanced road presence
This diffuser pairs perfectly with other exterior upgrades such as:
Carbon fiber trunk spoilers
Carbon fiber mirror caps
Carbon fiber front lips
Carbon fiber side skirts
Together, these components create a complete performance-inspired exterior build.
Orders for the Audi A3 S3 Carbon Fiber Rear Diffuser typically require:
2–3 business days for processing
Approximately 2 weeks for shipping
Shipping times may vary depending on location and inventory availability.
The Audi A3 S3 Carbon Fiber Rear Diffuser delivers the perfect combination of aggressive styling and premium craftsmanship. With its Big Fin aerodynamic design, lightweight carbon fiber construction, and precise vehicle fitment, it provides a dramatic upgrade to the rear appearance of the Audi A3 and S3.
If you want to give your 2017–2020 Audi A3 or S3 a sharper and more performance-focused appearance, the Audi A3 S3 Carbon Fiber Rear Diffuser is the perfect finishing touch.
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Original price was: $259.99.$219.99Current price is: $219.99.
Original price was: $259.99.$219.99Current price is: $219.99.
Original price was: $259.99.$219.99Current price is: $219.99.
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