Karbel Carbon Dry Carbon Fiber Rear Diffuser for Audi S4 & A4 S Line 2017-2019 B9

Sale price Price $980.00 Regular price Unit price  per 

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Upgrade your Audi S4 A4 (with S-line bumper, does not fit base model) B9 2017-2019 with Aftermarket Parts - V1 (With LED Light) & V2 (Without LED Light) & V3 (RS4 Style) Style Pre-preg Carbon Fiber Rear Diffuser from Karbel Carbon


Product Information

Vehicle Make Audi
Vehicle Model & Chassis S4 A4 (with S-line bumper, does not fit base model) B9 
Vehicle Year 2017-2019
Vehicle Body Type 4 Door Sedan
Brand Karbel Carbon
Product Category Rear Diffuser
Installation Method Replacement with OEM mounting points.
Professional Installation Recommendation Professional installation recommended.
Installation Guide Call in for instructions.
Package Content Rear Diffuser x1 (1 pcs)

Real Pre-preg (Dry) Carbon Fiber with UV Protection Clearcoat.


Carbon Pattern Options

Woven Carbon (default option) / Forged Carbon (20% extra charge, made to order)

*To place order for other bespoke or creative options, please email or call in.


Finish Options Gloss Finish  (default option) / Matte Finish (made to order)
Estimate Installation Hours 2.5 Hours
Additional Information 


About Karbel Carbon

Pre-preg Carbon Specialist

At Karbel we make sure to offer our clients the best quality of selection of carbon fiber parts, as well as provide them with superb customer service.

Our products are made of dry carbon fiber, which is third generation of carbon fiber material characterized by its lightweight and strength. The dry carbon fiber fabric is weaved with resin pre-impregnated carbon fiber called "prepreg" in carbon fiber industry. Prepreg reaches optimal resin/carbon ratio to strive for its characteristics. Thus during the carbon parts manufacture process, there is no resin application needed when molding. This is why we call it “Dry” carbon fiber. Autoclave process is another important step to finish our product. In the autoclave, the high pressure and temperature are the key to our products’ tensile strength, which could be 15 times higher than steel's. Unlike the Wet carbon fiber where the resin is applied into carbon fiber cloth to form sturdy structure, dry carbon fiber parts are generally 50% lighter than those made of wet carbon fiber, and the strength of these two materials are also different. That is why carbon inlays and interiors use wet carbon fiber.