Audi A4 B8 S-Line / S4 Sedan Carbon Fiber JC Style Rear Valance Diffuser 2008 - 2012

Upgrade the lower rear profile of your Audi A4 B8 S-Line or S4 Sedan with this genuine carbon fiber rear valance diffuser, precision manufactured using a 3D design and CNC moulding process with full autoclave curing. Featuring a distinctive JC design with a bold wide scoop profile, this rear valance goes beyond a conventional diffuser to create a genuinely assertive lower rear appearance that sets the A4 B8 and S4 Sedan apart from the standard factory finish. The high-gloss epoxy polished and UV-protected surface showcases the natural carbon weave in exceptional detail, maintaining its finish over long-term outdoor and driving exposure. At 142.7cm wide, the valance delivers full-width lower rear bumper coverage for a comprehensive and impactful rear end upgrade. Both adhesive tape and screws are supplied for a secure and precise fitment.

Features:

• Genuine carbon fiber construction – autoclave cured using 3D design and CNC moulding for precise valance geometry, consistent panel quality, and high structural integrity
• High-gloss epoxy polished and UV-protected surface finish – showcases the natural carbon weave in exceptional detail and resists UV exposure, moisture, and surface degradation
• JC design with bold wide scoop profile – a more distinctive and assertive rear lower appearance compared to standard diffuser alternatives
• Full-width 142.7cm coverage delivers comprehensive lower rear bumper upgrading for maximum visual impact
• Dual installation method – adhesive tape for a clean finish or screws for a more permanent and secure fitment

Specifications:

• Condition: 100% Brand New
• Type: Rear Valance Diffuser
• Material: Genuine Carbon Fiber
• Surface Finish: High-Gloss Epoxy Polished & UV Protected
• Style: JC Design with Wide Scoop
• Manufacturing Process: 3D Design · CNC Moulding · Autoclave Cured
• Dimensions: 142.7 x 39 x 14 cm
• Weight: 1.25 kg
• Installation Method: Adhesive Tape & Screws (both included)
• Fitment: A4 B8 S-Line / S4 Factory Rear Bumper Only
• Purpose: Retrofit / Upgrade

Fitment:

• Audi A4 B8 S-Line Sedan 4-Door (2008–2012)
• Audi S4 B8 Sedan 4-Door (2008–2012)
• Compatible with A4 B8 S-Line and S4 factory rear bumper only – not compatible with aftermarket or non-S4 bumper configurations
• Sedan 4-door body style only – not confirmed for Avant or Allroad body variants

Contents:

• 1x Carbon Fiber Rear Valance Diffuser
• Adhesive Tape included
• Mounting Screws included

Benefits:

• Genuine autoclave carbon fiber delivers an authentic carbon weave appearance and superior strength-to-weight ratio over carbon-look ABS or fiberglass alternatives
• UV-protected high-gloss epoxy finish maintains the premium carbon surface appearance over prolonged outdoor and driving exposure without fading or yellowing
• JC wide scoop design creates a more distinctive and aggressive rear lower appearance than conventional flat diffuser profiles – a bold statement rear end upgrade on the A4 B8 and S4 platform
• Full-width 142.7cm coverage ensures a comprehensive lower rear bumper upgrade with no factory bumper areas left exposed
• Dual installation method provides full flexibility – adhesive tape for a clean finish or screws for a more secure and permanent fitment

Installation Notes:

• Adhesive tape and screws both supplied – select the installation method that best suits your preference for permanence and finish quality
• For adhesive tape installation – thoroughly clean, degrease, and dry the factory rear bumper surface before fitting to ensure maximum adhesion strength
• For screw installation – professional fitting is recommended to ensure correct valance positioning, panel alignment, and a clean finish
• Compatible with A4 B8 S-Line and S4 factory rear bumper only – will not fit aftermarket rear bumpers or non-A4 B8 bumper configurations
• Sedan 4-door body style only – not confirmed for Avant or Allroad body variants
• If unsure about compatibility with your specific A4 B8 or S4 variant, contact our team with your year, model, and trim level before ordering

Shipping Information:

• Processing Time: 2-5 business days for warehouse stock items
• Made-to-Order: Please allow 2-4 weeks for shipping if product requires custom manufacturing

Warranty:

• 12-month standard warranty from date of purchase
• Contact our support team for assistance with any issues

Warranty Assurance:

At K2 Industries, your satisfaction is our priority, and we stand behind the quality of our products. Here's a brief overview of our warranty:

Defect Coverage:
If you find a defect after receiving your order, get in touch with us. We're committed to resolving the issue, whether it involves a replacement, repair, or refund.

Installation Note:
Please inspect your purchase before installation. Unfortunately, damages post-installation are not covered, so ensure everything looks good beforehand.

Claims Made Simple:
Need to make a claim? Reach out to us at support@k2-industries.com. We're here to assist you. Just keep your original packaging and documentation handy.

Your Satisfaction Matters:
Your trust in K2 Industries is appreciated. We're dedicated to ensuring your satisfaction with our quality automotive parts.

Shipping Information:

At K2 Industries, we strive to provide a seamless and efficient shopping experience for automotive enthusiasts like you. Our commitment is to deliver high-quality parts to your doorstep with the utmost care.

Fast and Reliable Shipping:
Many of our products are stocked in our local warehouse, ensuring swift processing and delivery. Orders placed for these items typically ship within 2-5 business days, allowing you to get your parts in no time.

Extended Selection, Global Reach:
To offer you a broader range of automotive parts, some items are sourced from trusted suppliers around the world. While these products might have a slightly longer processing time, we assure you that the wait is worth it for the exceptional quality and value they bring.

Shipping Transparency:
For products shipped internationally, we provide estimated delivery times on the product page. Rest assured, we are continually working to optimize our supply chain and minimize any potential delays.

Combined Shipments:
To streamline your shopping experience, if your order includes items from both our local warehouse and international suppliers, they may be shipped separately. You will receive separate tracking information for each shipment.

Questions or Concerns?
If you have any questions about shipping or would like assistance tracking your order, our dedicated customer support team is here to help. Feel free to reach out to us at support@k2-industries.com.

You can also track your order here

Thank you for choosing K2 Industries for your automotive needs. We appreciate your trust in us.