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Audi A4/S4 B9 DTM Carbon Fiber Rear Diffuser

Audi A4/S4 B9 DTM Carbon Fiber Rear Diffuser
Part Number: audib9001
Brand: RWCarbon
List Price: $749.95
Price: $569.95


Customer Testimonials
Quality Guarantee
Carbon Fiber Maintenance

Enhance the visual appeal of your Audi A4 or S4 with our Carbon Fiber Rear Diffuser. This carbon fiber rear diffuser for your Audi is an aggressive addition to make your vehicle stand out among others on the road. Constructed from the traditional 2x2 carbon fiber weave, this carbon fiber rear diffuser is constructed by enthusiasts like yourself and made so it is built to last. These products are coated in our UV resistant clearcoat to ensure no fading or discoloring occurs. As always these pieces are backed by RW's fitment and quality guarantee to ensure you are the highest quality carbon fiber on the market.

Contact us with any questions you have about the Audi A4/S4 DTM Carbon Fiber Rear Diffuser. (714) 328-4406


  • 2018-19 Audi A4 Facelift
  • 2018-19 Audi S4 Facelift 


  • Aggressive Styling
  • Fitment and Quality Guarantee
  • Typically In Stock 
  • Quality Check Before Shipping
  • Traditional 2x2 Carbon Fiber

Professional installation is always recommended for RW Carbon's products including these Audi A4/S4 Facelift Carbon Fiber Rear Diffuser. 

Why Choose RW Carbon?
We know there are many companies out there claiming to have the best carbon fiber exterior additions for your Audi. At we pride ourselves on taking the time to quality check every piece we ship out. Many other competitors ship you a product that comes straight from overseas - without taking the time to check it. If you order one of these parts you could receive a part that is damaged, has scratches in the clear coat, or possesses overall poor carbon fiber construction. By choosing RW Carbon we make the promise to deliver you a consistent, quality product that is shipped from our Southern California location - the first and every subsequent time you order from us. One Goal, One Focus - Carbon Fiber.

rw carbon fiber audi a4 s4 dtm carbon fiber rear diffuser

rw carbon fiber audi a4 s4 dtm carbon fiber rear diffuser

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Part # Description Price
audib9001 Audi A4/S4 B9 DTM Carbon Fiber Rear Diffuser $569.95 Add to Cart

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Fits These Applications:

Year Make Model SubModel Engine Transmission Drive
2019 - 2021 Audi A4 B9 Facelift RWC
2019 - 2021 Audi S4 B9 Facelift RWC