2008–2012 Audi A4 S-Line / S4 B8 Sedan Rear Bumper Lip with Integrated Brake Light – Carbon Fiber

2008–2012 Audi A4 S-Line / S4 B8 Sedan Rear Bumper Lip with Integrated Brake Light – Carbon Fiber

Sale price  $679.99 Regular price $746.00
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2008–2012 Audi A4 S-Line / S4 B8 Sedan Rear Bumper Lip with Integrated Brake Light – Carbon Fiber

K2 Industries

2008–2012 Audi A4 S-Line / S4 B8 Sedan Rear Bumper Lip with Integrated Brake Light – Carbon Fiber

Sale price  $679.99 Regular price $746.00

Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.

2008–2012 Audi A4 S-Line / S4 B8 Sedan Rear Bumper Lip with Integrated Brake Light – Carbon Fiber

Complete the rear-end styling of your Audi A4 B8 S-Line or S4 Sedan with this carbon fiber rear bumper lip featuring an integrated brake light. Spanning 142.7 cm across the lower bumper, it adds a wider, more aggressive lower rear appearance while incorporating a functional brake light for added rear visibility.

Build

  • Material: Genuine carbon fiber, autoclave cured using a 3D design and CNC moulding process for precise lip geometry, consistent panel quality, and an authentic weave appearance over carbon-look ABS or fiberglass alternatives
  • Surface finish: High-gloss epoxy-polished and UV-protected finish that showcases the natural carbon weave and resists UV exposure, moisture, and surface degradation through sustained outdoor and driving use
  • Integrated brake light: Built-in brake light combines the visual upgrade with added rear visibility
  • Panel width & weight: 142.7 cm across · approximately 1.25 kg

Design & Function

  • Aggressive stance: Lip profile adds width and visual weight to the lower rear for a more planted, track-inspired rear end
  • Integrated brake light: Adds a functional lighting element to the rear bumper alongside the styling upgrade
  • Carbon aesthetic: Directional weave and gloss finish complement the sporty S-Line and S4 bodywork for a coordinated, motorsport-grade look

Fitment

  • 2008–2012 Audi A4 S-Line B8 Sedan (4-door)
  • 2008–2012 Audi S4 B8 Sedan (4-door)
  • Fits the A4 S-Line and S4 factory rear bumper only — not compatible with the standard non-S-Line A4 or aftermarket bumper configurations
  • Body style: Sedan only — not confirmed for Avant or Allroad body styles

Package Contents

  • 1 × carbon fiber rear bumper lip with integrated brake light
  • Adhesive tape for installation
  • Mounting screws for installation

Installation

  • Two mounting options: Fit with the included adhesive tape for a cleaner finish, or with the included screws for a more permanent, secure fitment
  • Electrical connection required: The integrated brake light must be wired into the car's lighting

Your vehicle

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Manufacturer & part identification

K2 Industries

Use the SKU for your selected option when contacting us.
OptionSKU / part reference
Standard1700004678928
Vehicle compatibility

Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.

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Installation & specifications

Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.

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