Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Transform the rear-end of your Audi A3 or S3 with this KB Style Carbon Fiber Rear Diffuser, designed specifically for the 2017-2020 8V.5 platform. Built to deliver an aggressive, motorsport-inspired appearance, this diffuser enhances the rear profile while maintaining OEM-level fitment and clean integration.
Whether you're upgrading a daily-driven A3 S Line or a performance-focused S3, this diffuser adds a bold and track-inspired finish that completely elevates the vehicle’s stance.
Aggressive KB-Style Design
The KB-style diffuser features sharp fins, deep contours, and a race-inspired layout that enhances the visual width and aggression of the rear bumper.
It creates a more planted and performance-oriented appearance while preserving factory styling cues.
Design Highlights
- KB-style aggressive fin design
- Motorsport-inspired rear aesthetics
- Deep sculpted diffuser profile
- OEM+ styling balance
- Enhanced rear-end presence
- Clean and modern performance look
Real Carbon Fiber Construction
Manufactured from high-quality carbon fiber, this diffuser offers both lightweight performance and long-lasting durability.
The 2x2 weave pattern and high-gloss UV protective clear coat ensure a premium finish that resists fading and maintains its appearance over time.
Material Benefits
- Real carbon fiber construction
- 2x2 weave pattern finish
- UV-protective clear coat
- Lightweight performance design
- High strength-to-weight ratio
- Long-lasting durability
Gloss UV Protective Finish
The high-gloss finish enhances the carbon fiber weave while protecting the surface from UV exposure, road debris, and environmental wear.
This ensures the diffuser maintains a deep, reflective shine for years.
Finish Benefits
- High-gloss carbon finish
- UV protection layer
- Fade-resistant coating
- Enhanced weave visibility
- Premium aesthetic appeal
- Long-term surface durability
OEM-Level Fitment
Designed specifically for the 8V.5 Audi A3 and S3 platform, this diffuser follows factory mounting points for a precise and seamless installation.
The result is a clean OEM+ appearance without gaps or modification requirements.
Fitment Benefits
- Direct-fit design
- Factory mounting compatibility
- Seamless bumper integration
- No trimming required
- OEM-style alignment
- Precision-molded fitment
Track-Inspired Rear Transformation
This diffuser dramatically enhances the rear-end appearance by adding depth, structure, and aggressive styling cues.
It gives your Audi a wider, lower, and more performance-focused stance.
Styling Impact
- Aggressive rear-end transformation
- Wider visual stance
- Motorsport-inspired detailing
- Enhanced aerodynamic look
- RS-inspired aesthetic upgrade
- High-impact visual change
Professional Installation Required
This diffuser is designed for secure installation using bolts and 3M tape, ensuring a firm and stable fit.
Professional installation is recommended for optimal alignment and finish.
Vehicle Fitment
Audi A3 (8V.5)
- 2017 Audi A3 S Line
- 2018 Audi A3 S Line
- 2019 Audi A3 S Line
- 2020 Audi A3 S Line
Audi S3 (8V.5)
- 2017 Audi S3
- 2018 Audi S3
- 2019 Audi S3
- 2020 Audi S3
Features
- KB-style carbon fiber diffuser design
- Real 2x2 carbon fiber construction
- High-gloss UV protective clear coat
- OEM-style fitment
- Aggressive finned design
- Lightweight performance material
- Durable and weather-resistant
- Direct-fit installation design
Benefits
- Instantly enhances rear-end styling
- Adds aggressive RS-inspired look
- Improves visual stance and presence
- Lightweight and durable construction
- Premium carbon fiber finish
- Factory-style fitment
- Long-lasting UV protection
Specifications
- Vehicle Chassis: Audi 8V.5
- Vehicle Compatibility: Audi A3 S Line & S3
- Model Years: 2017-2020
- Material: Real Carbon Fiber
- Weave: 2x2 Carbon Fiber
- Finish: Gloss UV-Protected Clear Coat
- Installation Type: Bolt-on + 3M Tape
- Condition: Brand New
Package Includes
- (1) KB Style Carbon Fiber Rear Diffuser
- Installation Hardware Kit
Warranty
All German Car Accessories products are backed by a 1-Year Limited Warranty for reliability and customer peace of mind.
Notes
This is an aftermarket styling product and is not affiliated with or endorsed by Audi AG. Vehicle names are used strictly for fitment reference.
