Skip to product information
1 of 3

Four Rings Society

A5/S5 B9 Carbon Fiber Rear Diffuser (2017-2020)

A5/S5 B9 Carbon Fiber Rear Diffuser (2017-2020)

Regular price $649.99
Regular price $699.99 Sale price $649.99
Sale Sold out
Taxes included. Shipping calculated at checkout.

Audi A5/S5 B9 SLine (2017-2020) with our L Style Carbon Fiber Rear Diffuser, designed to provide a sleek, aggressive look and enhance aerodynamics. This rear bumper lip diffuser is the perfect addition for Audi enthusiasts looking to enhance both style and performance.

Key Features:

Premium Carbon Fiber Construction:

  • Constructed from 100% high-grade carbon fiber for outstanding durability and a lightweight profile.
  • Offers significant weight reduction over the OEM rear diffuser, improving overall vehicle handling.

L Style Design:

  • The L Style design offers a unique, aggressive look that transforms the rear end of your A5/S5.
  • Precisely crafted to fit the contours of the A5/S5 B9 SLine rear bumper, giving it a seamless, factory-quality appearance.

Perfect Fitment:

  • Exclusively designed for Audi A5/S5 B9 SLine models (2017-2020).
  • Direct replacement that uses factory mounting points, making installation straightforward with no modifications required.

UV-Resistant Gloss Finish:

  • Coated with a UV-protected high-gloss clear finish that resists fading and yellowing.
  • Highlights the intricate carbon fiber weave, giving your Audi a premium, high-end look.

Improved Aerodynamics:

  • Helps to optimize airflow and reduce drag, which enhances stability at higher speeds.
  • Pairs well with other carbon fiber upgrades for a cohesive, performance-oriented aesthetic.

Specifications:

  • Material: 100% High-Grade Carbon Fiber
  • Finish: UV-Protected Gloss Clear Coat
  • Weight: Lightweight compared to the OEM diffuser
  • Compatibility: Audi A5/S5 B9 SLine models (2017-2020)
  • Installation: Uses original factory mounting hardware

Package Contents:

  • 1 x L Style Carbon Fiber Rear Diffuser
  • Installation Hardware (if required)
  • Installation Guide

Installation Instructions:

Professional Installation Recommended:

  • Although designed for easy, direct installation, professional installation is advised to ensure perfect fitment and secure attachment.

Additional Information:

  • Shipping Notice: Available for immediate shipping or pre-order, based on stock availability.
  • Packaging: Securely packaged to prevent any damage during transit.

Warranty:

  • Coverage: 90-day limited warranty against manufacturing defects, effective from the date of delivery.

Returns:

  • Policy: 30-day return policy from the date of delivery.
  • Details: For more information, please refer to our Return Policy.
California Prop 65 Warning:
⚠️ This product can expose you to chemicals including carbon fiber particulate and epoxy resin, known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
View full details