Enhance the rear profile of your Audi A4 S-Line or S4 B9 with our ABT Style Carbon Fiber Rear Diffuser, crafted to deliver aggressive styling and refined performance. Inspired by the renowned ABT design, this diffuser brings motorsport character to the street, perfectly complementing the sleek lines of the B9 chassis. Constructed from high-quality carbon fiber and finished in a high-gloss clear coat, it provides a premium visual upgrade while maintaining OEM-like fitment.
Key Features:
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ABT-Inspired Design: Brings a bold, race-inspired look to your B9 with aggressive contours and clean integration.
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Real Carbon Fiber Construction: Lightweight, durable, and finished with a glossy, UV-protected clear coat.
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Direct Replacement Fitment: Designed to install seamlessly on factory S-Line and S4 rear bumpers without major modifications.
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Aerodynamic Enhancement: Improves airflow at the rear and adds a dynamic presence to your vehicle.
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Perfect for Street or Show Builds: Elevates the factory look with performance-inspired styling.
Fitment:
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Audi A4 B9 S-Line (Sedan Only): 2017–2019
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Audi S4 B9 (Sedan Only): 2017–2019
Will only fit models equipped with the factory S-Line or S4 rear bumper. Not compatible with standard A4 rear bumpers.
Specifications:
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Material: 100% Real Carbon Fiber
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Finish: Gloss Clear Coat with UV Protection
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Style: ABT Style Diffuser
Package Includes:
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1x ABT Style Carbon Fiber Rear Diffuser
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Rear Fins
Installation Notes:
Professional installation is recommended for optimal alignment and fitment.
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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. |