

Audi B8.5 S4 & A4 KB Style Carbon Fiber Rear Diffuser
The KB Style Carbon Fiber Rear Diffuser for the Audi B8.5 S4 & A4 S Line (2013-2016) is a premium aftermarket accessory designed to upgrade the rear aesthetics and aerodynamic performance of your vehicle. This diffuser is tailored for the B8.5 facelift models, bringing a sporty and aggressive look along with functional enhancements.
Key Features:
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KB Style Design:
- Aggressive Sporty Appearance: Adds a bold, race-inspired look to the rear of your Audi, enhancing its aggressive stance.
- S4 & A4 S Line Specific: Designed to perfectly complement the 2013-2016 B8.5 S4 and A4 S Line trims, integrating seamlessly with the factory styling.
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High-Quality Carbon Fiber Construction:
- Lightweight and Durable: Made from high-grade carbon fiber, known for its exceptional strength-to-weight ratio, ensuring longevity and performance without adding unnecessary weight.
- Distinctive Weave Pattern: Features the signature carbon fiber weave, providing a luxurious and high-tech visual appeal.
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Aerodynamic Enhancements:
- Improved Downforce: Enhances the vehicle’s rear stability and handling by increasing downforce and managing airflow more efficiently.
- Optimized Airflow Management: Helps reduce drag and improve overall aerodynamic efficiency, contributing to better performance and potentially improved fuel efficiency.
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Glossy Finish:
- Premium Shine: The glossy clear-coated finish accentuates the carbon fiber’s texture, adding a sophisticated and polished look to your vehicle.
- UV and Scratch Resistant: Offers protection against UV damage and minor abrasions, maintaining its premium appearance over time.
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Perfect Fit for B8.5 S4 & A4 S Line (2013-2016):
- Precision Engineered: Specifically designed to fit the rear bumper of the B8.5 facelift S4 and A4 S Line models, ensuring a precise and secure fit.
- OEM-Like Integration: Blends seamlessly with the existing bumper design, giving a factory-installed appearance and enhancing the car’s overall look.
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If a product is in stock, it’s usually delivered within 2–10 days, depending on your location.
If a product is made to order, production takes approximately 2–4 weeks, followed by 1–3 weeks for delivery, depending on your location.
We can always arrange faster air shipping upon request — please contact us for an individual quote.
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