Audi B9 S4 A4 S Line Carbon Fibre Rear Diffuser With 3rd Brake Light (2017 - 2019)


  • £439.95
    Unit price per 
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The Rear Diffuser is high quality 2*2 3K carbon fiber with a super light and durable. It is installed by self-tapping screws and replacement of the factory bumper diffuser with highly recommended professional installation. 

The Rear Bumper Diffuser is a glossy look and stylish design, which enhances overall performance in handling and durability. It is road use regulations and certified materials manufacturers that meet market requirements. This Bumper Diffuser provides an elegant, personalized appearance, and make your car more sporty.

Item Information

  • Manufactured using high-quality 2*2 3K carbon Fibre twill.
  • Created using precision 3D Scanned molds for great fitment.
  • Aggressive look for the Quad Exhaust Conversion.
  • Easy installation - Fitment on the original mounting points with screws for fixing. 

Suitable Cars

  • Audi B9 A4 S Line (2017 - 2019)
  • Audi B9 S4 (2017 - 2019)

Delivery Information

  • We deliver Worldwide Free of charge
  • Item(s) are not actively held in stock and usually sell out quickly, so please contact sales to perform a stock check.
  • Full tracking free with every order.


Designed to Enhance the Look of your Pride and Joy


Made from Real Carbon Fibre.


Here at XXIITUNING, We Pride Ourselves on Providing Our Customers with Oem Quality Parts at the Best Price You Can Get.


All our Products Are Researched Extensively for you in the hopes of making your shopping experience as Joyful as possible.

We recommend professional installation of all products as some parts may require removal of bumpers for fitting to take place. 


If you have any questions about any of our items, please we urge you to contact our team so we can help you find the correct part or inform you on more details about the part you are looking at



Please note: XXIITUNING do not accept any liability if damage is caused to your car by the installation of this product. Professional installation is recommended on all our products.

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