• 2020-2024 Audi S4 B9.5 real carbon fiber rear diffuser
  • Direct bolt-on quad diffuser for Audi S4 facelift
  • Aggressive carbon fiber rear valance for S4 B9.5
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  • carbon fiber upgrade for 2023 S4
  • B9.5 rear diffuser
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2020-2024 For Audi S4 B9.5 Carbon Fiber Rear Diffuser | Quad Tailpipe | Direct Bolt-On Fit | US Stock

$799.99
$799.99 $958.99
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⚡️2020-2024 For Audi S4 B9.5 Carbon Fiber Rear Diffuser - Quad Tailpipe Design | Direct Bolt-On Fit | US Warehouse
Transform your 2020-2024 Audi S4 B9.5 with the 2020-2024 Audi S4 B9.5 Real Carbon Fiber Rear Diffuser — the ultimate rear-end upgrade for enthusiasts seeking premium carbon fiber and authentic sporty styling. Engineered exclusively for the B9.5 chassis, this diffuser features 100% real carbon fiber construction, an integrated quad tailpipe design, direct bolt-on fit (no modifications needed), and is stocked in US warehouses for fast domestic delivery. It’s the top choice for B9.5 S4 owners wanting to elevate their ride’s performance appeal without sacrificing factory functionality or fitment precision.

Key Features

✅ B9.5-Exclusive Fit for 2020-2024 S4 Models
Precision-crafted for the 2020-2024 B9.5 platform, this diffuser is 100% compatible with all Audi S4 B9.5. Using 3D laser scanning of OEM B9.5 rear bumper data, it aligns flawlessly with factory contours, mounting points, and rear fascia — no gaps, no trimming, no forced adjustments.
✅ 100% Real Carbon Fiber Construction (Premium Quality)
Crafted from high-grade twill weave carbon fiber, for superior strength-to-weight ratio. The surface features a UV-stabilized gloss clear coat that resists fading, yellowing, and oxidation, maintaining a showroom-worthy shine for years. Unlike cheap carbon-look alternatives, this s4 b9.5 real carbon fiber diffuser delivers authentic carbon fiber texture and motorsport-grade durability, withstanding road debris and extreme temperatures.
✅ Integrated Quad Tailpipe Design (Sporty Aesthetics)
Replicates the aggressive quad exhaust layout of high-performance Audi models: precision-cut tailpipe openings that align seamlessly with factory or aftermarket quad exhaust systems. For b9.5 s4 quad tailpipe carbon fiber diffuser seekers, it’s the perfect blend of style and function.
✅ Direct Bolt-On Installation (Hassle-Free Upgrade)
Designed for plug-and-play convenience: uses factory mounting points and hardware, requiring no drilling, cutting, or welding. Installation takes 1-2 hours for professionals or experienced DIYers (standard tools only), preserving vehicle integrity and resale value. The s4 b9.5 real carbon diffuser direct bolt-on design ensures a factory-installed look without permanent modifications, ideal for both enthusiasts and leaseholders.
✅ US Stock & Fast Domestic Shipping
Stocked in multiple US warehouses for immediate fulfillment: orders process within 1-2 business days, with delivery in 3-7 business days to all 48 US states. Full tracking information is provided, and shock-absorbent packaging protects the carbon fiber component from transit damage. No customs delays, hidden fees, or long lead times — get your b9.5 s4 carbon fiber diffuser us stock upgrade quickly and securely.

Why Choose Our Real Carbon Fiber Rear Diffuser? 
When upgrading your 2020-2024 Audi S4 B9.5, authenticity, fitment precision, and convenience are non-negotiable — our real carbon fiber rear diffuser stands out as the top choice for discerning B9.5 S4 owners because it is crafted from 100% twill weave carbon fiber, is precision-engineered via 3D laser scanning of OEM B9.5 components to ensure seamless, gap-free fitment that mirrors factory quality, features an integrated quad tailpipe design that enhances the S4’s performance heritage while complementing its B9.5-specific body lines, offers a direct bolt-on installation process that requires no modifications to preserve your vehicle’s integrity and resale value, and real-world testing on actual B9.5 S4 models to guarantee compatibility with factory systems and aftermarket upgrades alike.
🔧 15-Year Specialization: 132,387+ bumpers installed since 2010.
🚚 Next-Day US Delivery: 90% of orders ship from our West Coast warehouse within 24 hours. Free shipping & no sales tax(Continental US only).
🛡️ Zero-risk purchase:
14-day return: return label is provided for easy exchange.
Price match guarantee: Found a cheaper one? We will match the price and provide an additional 5% discount

Other attributes

Condition New
Material Carbon Fiber & Stainless Steel
Product Type Rear Diffuser Kit for Audi S4 B9.5
Installation Direct Fit (No Modifications Required)
Items Included Other mounting hardware
Single package size 168*20*48 cm
Single gross weight 6.000 kg

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  • FAQ

US orders

Delivery range: 48 states (excluding Alaska, Hawaii, Puerto Rico, military addresses, etc.).

Delivery method: FedEx/UPS/POST/DHL free delivery, no PO boxes.

Time limit: depends on the region.

Free shipping within the continental US!

International orders

Cost: Shipping + tariffs are calculated separately, please contact customer service for confirmation（The transportation time is subject to the shipping standards of the Chinese warehouse）.

Logistics: FedEx/UPS/POST/DHL, etc.

Standard products

Shipment from US warehouse: shipped on the second working day after order confirmation, and delivered in 2-5 working days.

Shipment from China warehouse: shipped 2-5 working days after order confirmation, and expected to be delivered in 7-10 working days.

International orders: The time limit refers to the China warehouse standard, and the specific details need to be confirmed with customer service.

Special products

Large items (such as bumpers): only support sea transportation, and the transportation cycle is about 25-45 days.

Customized carbon fiber products:

Production cycle: need to be confirmed after purchase.

Transportation method: choose air transportation (total cycle 10-15 days) or sea transportation (total cycle 25-35 days) according to size.

Cancellation Policy

  • Orders can be canceled free of charge within 24 hours of placement. Refunds will be processed to the original payment method within 3-5 business days.

 

Return Policy

Timeframe

  • 14-Day Returns: Returns are accepted within 14 days of delivery. No returns/exchanges permitted after this period.
  • Customized Products: Non-returnable.

Eligibility

  • Items must be unused, undamaged, and in their original packaging with all accessories.
  • A valid proof of purchase (receipt/order confirmation) is required.
  • Returns must use the official return label provided by us.

Process

  1. Contact customer service at support@elitegermanparts.com to request a return label.
  2. Sign the inspection form upon return delivery.
  3. Report damages within 24 hours of signing. After this period, the product is assumed to be in good condition.

Cost Responsibilities

  • Customers cover round-trip shipping costs for non-defective returns.
  • Non-U.S. Customers: Must pay international shipping fees to return items to China (may be expensive).

Q1: Why do the products displayed in the store not include complete accessories?
A: The products displayed in our store do not include complete accessories. When you purchase the product, we will give you the required accessories. The accessories may be mailed with the product in 1 or 2 packages. We will provide you with the corresponding package tracking number so that you can check the logistics information in real time.

Q2: The package received is damaged, but it does not affect the installation and appearance. What should I do?
A: If the package is damaged but does not affect the installation and appearance of the product, in order to reduce your after-sales time, we will apply for part of the compensation for you. You do not need to send back the damaged package, just keep the package and the product. We will have a dedicated after-sales staff to communicate with you about compensation matters to ensure that your rights and interests are protected.


Q3: What should I do if the package is damaged and affects the installation of the product?
A: If the package is damaged and affects the installation of the product, you can rest assured that we will re-mail you a new product free of charge. Please provide photos of the damage within 24 hours after receiving the package. The photos must include the outer packaging of the package with the tracking number so that we can accurately verify the situation. We will assist you in applying for compensation from the courier and handle related matters for you throughout the process. You only need to wait patiently for the delivery of the new package.


Q4: Is the product guaranteed to be compatible?
A: All products have passed market verification and we guarantee the adaptability of the products. During the design and production process, we have undergone rigorous testing and verification of actual scenarios.


Q5: What should I do if there is incompatibility during installation?
A: If there is incompatibility during the installation process, please contact our customer service team in time. We have rich installation experience and will provide you with detailed solutions and technical support based on the specific problems you encounter to help you solve the problems in the installation process and enable the product to be installed and used smoothly.


If you have other questions or questions during the shopping process, please feel free to contact us by email at support@elitegermanparts.com, we will serve you wholeheartedly!