Audi A4 / S4 B9 Sedan Real Carbon Fiber Rear Bumper Diffuser with LED Third Brake Light – Modern Styling Upgrade, Genuine Carbon Fiber, Aggressive Fitment (2017–2019)

Enhance the rear-end styling of your Audi A4 or S4 B9 Sedan with this Real Carbon Fiber Rear Bumper Diffuser Lip with Integrated LED Third Brake Light, designed to deliver an aggressive OEM+ performance appearance while seamlessly integrating with the factory rear bumper. This premium exterior upgrade adds a sharper, sportier rear profile while providing an additional LED brake light accent for a more dynamic and modern appearance.

Crafted from 100% genuine carbon fiber, this rear diffuser lip provides a lightweight yet durable upgrade for Audi enthusiasts seeking premium exterior styling. The precision-molded construction ensures proper alignment with factory body lines, creating a clean and seamless appearance that complements the original rear bumper design.

The integrated LED third brake light enhances the rear appearance by adding a motorsport-inspired lighting element while improving visibility when braking. Finished with a premium high-gloss UV-resistant clear coat, the carbon fiber surface is protected against fading, discoloration, and environmental exposure while maintaining a deep, luxurious carbon fiber finish.

Perfect for Audi owners looking to achieve a more aggressive performance-inspired rear appearance, this diffuser combines premium carbon fiber craftsmanship, functional LED lighting, and OEM+ styling in one complete upgrade.

Key Features:

• Made from 100% Genuine Carbon Fiber
• Integrated LED third brake light design
• Premium high-gloss UV-resistant clear coat finish
• OEM+ performance-inspired styling
• Enhances rear bumper appearance with an aggressive diffuser design
• Adds a motorsport-inspired lighting accent
• Lightweight and durable construction
• Precision-molded for factory-style fitment
• Seamlessly follows factory rear bumper contours
• Premium exposed carbon fiber weave finish
• Resistant to fading, yellowing, and everyday weather exposure
• Professional installation recommended for best results

Designed specifically for compatible Audi A4/S4 B9 Sedan rear bumper applications. Please verify your rear bumper style and trim configuration before purchase to ensure proper fitment.

Refine the rear styling of your Audi A4 or S4 with this Real Carbon Fiber Rear Bumper Diffuser Lip with LED Third Brake Light, combining premium carbon fiber construction, integrated lighting technology, and aggressive OEM+ styling to create a more distinctive and performance-inspired rear appearance while maintaining the refined character of the B9 platform.

FITMENT: Audi A4 / S4 B9 Sedan

• 2019 Audi A4 Sedan 4-Door
• 2019 Audi S4 Sedan 4-Door
• 2018 Audi A4 Dynamic Sedan 4-Door
• 2018 Audi A4 Komfort Sedan 4-Door
• 2018 Audi A4 Premium Sedan 4-Door
• 2018 Audi A4 Premium Plus Sedan 4-Door
• 2018 Audi A4 Prestige Sedan 4-Door
• 2018 Audi A4 Progressiv Sedan 4-Door
• 2018 Audi A4 Select Sedan 4-Door
• 2018 Audi S4 Base Sedan 4-Door
• 2018 Audi S4 Progressiv Sedan 4-Door
• 2018 Audi S4 Technik Sedan 4-Door
• 2017 Audi A4 Sedan 4-Door
• 2017 Audi S4 Sedan 4-Door

Compatible With:

• 2017–2019 Audi A4 B9 Sedan
• 2017–2019 Audi S4 B9 Sedan

Please refer to the “Fitment” section in the product description for compatibility details.