Description
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Transform the rear end of your Audi A4 S Line or S4 with our Carbon Fiber Rear Diffuser featuring an integrated LED Brake Light. Designed specifically for the 2009-2012 B8 platform, this diffuser delivers a more aggressive and performance-focused appearance while maintaining excellent fitment and factory-level integration.
Constructed from genuine carbon fiber and engineered for long-lasting durability, this rear diffuser enhances both the visual appeal and sporty character of your Audi.
Aggressive Performance Styling
Designed to give your Audi a more dynamic and motorsport-inspired rear profile, this diffuser features sharp lines and aerodynamic contours that dramatically improve the appearance of the rear bumper.
Its aggressive design perfectly complements both factory and aftermarket performance modifications.
Design Highlights
- Aggressive rear-end styling
- Motorsport-inspired appearance
- Enhances factory bumper design
- Sportier and more dynamic look
- OEM+ performance aesthetic
- Complements other carbon fiber upgrades
Integrated LED Brake Light
The built-in LED brake light adds a race-inspired touch while increasing rear visibility during braking.
Integrated seamlessly into the diffuser design, the LED light creates a premium performance look that stands out both day and night.
LED Brake Light Benefits
- Integrated performance-style LED light
- Increased rear visibility
- Modern motorsport appearance
- Unique rear-end upgrade
- Functional and stylish design
- Seamless diffuser integration
Real Carbon Fiber Construction
Manufactured from genuine carbon fiber, this diffuser offers lightweight strength and premium aesthetics.
The authentic 2x2 carbon fiber weave delivers a high-end finish that enhances the overall appearance of the vehicle while maintaining durability for everyday driving.
Material Features
- Real carbon fiber construction
- Authentic 2x2 carbon fiber weave
- Lightweight and durable
- High-strength composite material
- Premium motorsport finish
- Long-lasting performance
Gloss UV-Protected Finish
Each diffuser is finished with a high-gloss UV-resistant clear coat designed to protect the carbon fiber from fading, discoloration, and environmental exposure.
The deep gloss finish highlights the carbon fiber weave and maintains a premium appearance over time.
Finish Benefits
- High-gloss clear coat
- UV-resistant protection
- Fade-resistant surface
- Enhanced carbon fiber depth
- Easy maintenance
- Long-term durability
Quad Exhaust Configuration
All versions of this diffuser are manufactured exclusively with quad exhaust cutouts, providing a more aggressive and performance-oriented rear appearance.
The quad-exit design helps create a balanced, sporty look that perfectly complements the B8 platform.
Exhaust Features
- Quad exhaust cutout design
- Performance-inspired styling
- Aggressive rear-end appearance
- Seamless integration with diffuser design
- Enhanced visual balance
- Motorsport-inspired aesthetic
Professional Installation Recommended
For optimal fitment and alignment, professional installation is recommended. The diffuser includes mounting hardware, bolts, and automotive-grade 3M tape to assist with installation.
Installation Features
- Professional installation required
- Bolts included
- Automotive-grade 3M tape included
- Secure mounting system
- Vehicle-specific fitment
- OEM-style integration
Vehicle Fitment
Audi A4 S Line (B8)
- 2009 Audi A4 S Line
- 2010 Audi A4 S Line
- 2011 Audi A4 S Line
- 2012 Audi A4 S Line
Audi S4 (B8)
- 2009 Audi S4
- 2010 Audi S4
- 2011 Audi S4
- 2012 Audi S4
Product Specifications
Fits: 2009-2012 B8 Audi A4 S Line and Audi S4
Material: Real Carbon Fiber
Carbon Fiber Weave: 2x2 Carbon Fiber Weave
Finish: Gloss UV-Protectant Clear Coat
Installation: Professional Installation Required (Bolts & 3M Tape Included)
Exhaust Configuration: Quad Exhaust Cutouts Only
Why Choose Our Audi A4/S4 Carbon Fiber Diffuser?
Our Carbon Fiber Rear Diffuser with Integrated LED Brake Light is the perfect upgrade for Audi enthusiasts looking to enhance the appearance of their B8 A4 S Line or S4. Combining aggressive styling, genuine carbon fiber construction, integrated LED functionality, and OEM-quality fitment, this diffuser delivers a premium performance-inspired upgrade that transforms the entire rear profile of your Audi.
