Upgrade the rear aesthetics of your Audi B8.5 A5 S-Line or S5 with our KB Style Carbon Fiber Rear Diffuser, featuring an integrated 3rd brake light. Designed to bring aggressive, track-inspired styling to your Audi, this diffuser not only enhances the visual appeal but also improves airflow dynamics at the rear. Constructed from premium-grade carbon fiber and finished in a high-gloss UV-resistant clear coat, this diffuser is the ideal addition for Audi enthusiasts looking for a bold, high-end look.
Key Features:
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KB Style Design: Delivers a sharp, race-inspired appearance that dramatically enhances the rear end of your vehicle.
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Premium Carbon Fiber Construction: Crafted from authentic carbon fiber for strength, lightness, and durability, with a gloss clear coat finish for a deep shine.
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Integrated 3rd Brake Light: Enhances visibility while adding a unique and aggressive visual element.
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OEM Fitment: Direct bolt-on design that aligns with factory mounting points—no cutting or major modifications required.
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Functional Aerodynamics: Helps smooth rear airflow and adds a subtle performance touch to your build.
Fitment:
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Audi B8.5 S5 Coupe & Cabriolet (V6T models): 2013–2017
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Audi B8.5 A5 S-Line Coupe & Cabriolet: 2013–2017
Compatible only with S-Line and S5 rear bumpers (will not fit standard A5 models without S-Line trim).
Specifications:
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Material: 100% Real Carbon Fiber
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Finish: Gloss UV-Resistant Clear Coat
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Style: KB Style Diffuser with Central Brake Light Integration
Package Includes:
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1x KB Style Carbon Fiber Rear Diffuser
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1x Integrated 3rd Brake Light
Installation Notes:
Professional installation is highly recommended. Some wiring may be necessary to connect the 3rd brake light to your existing harness.
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Shipping Information for Performance Parts
We proudly ship parts worldwide! All orders are processed Monday through Friday. Please allow 1-3 business days for order processing before shipment. We do not ship on weekends or public holidays.
| Estimated Shipping Times: | |
| U.S. & Canada: | 7-21 business days |
| International: | 10-35 business days (varies by location and customs processing) |
| Larger or Oversized Items: | May take longer due to handling, packaging, and freight requirements |
Shipping times may be affected by product availability, high demand, holidays, or unforeseen circumstances. For order updates, contact us at info@eguysperformance.com or DM us on Instagram @eguysperformance with your order number.
| Shipping Rates: | Calculated at checkout based on location and order weight |
| Customs & Import Taxes: | International orders may incur fees, duties, and taxes determined by local customs offices. These charges are the buyer’s responsibility. We are not liable for customs delays. |
What Does the E Guys Performance Lifetime Warranty Cover?
Our Lifetime Warranty is designed to give you peace of mind. Here’s what’s included:
| Available to the Original Purchaser: | This warranty applies exclusively to the original purchaser of the product. Coverage is valid for purchases made directly from E Guys Performance or through an authorized dealer. |
| Manufacturer Defects: | We cover defects in materials or workmanship. If a product fails due to a manufacturing issue, we will repair or replace it at no cost. |
| Shipping Costs for Warranty Claims: | We cover shipping costs for replacement parts on approved warranty claims, so you won’t incur additional fees. |
What Isn’t Covered?
| Improper Use or Installation: | Damage from incorrect installation, misuse, accidents, or normal wear and tear is not covered. |
| Modifications: | Any modifications made to the product will void the warranty. |
| Intended Use: | Products must be used as intended for the warranty to remain valid. |