2017–2019 Audi A5 / S5 B9 Sportback Side Skirt Extensions – Carbon Fiber
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
2017–2019 Audi A5 / S5 B9 Sportback Side Skirt Extensions – Carbon Fiber
Enhance the side profile and lower body stance of your Audi A5 or S5 B9 with these carbon fiber side skirt extensions. Molded for the factory door sills, they add visual width and a more planted lower body stance while introducing a premium carbon exterior detail to the B9 platform.
Build
- Material: Genuine carbon fiber, autoclave cured using a 3D design and CNC moulding process for precise skirt 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 road debris through sustained outdoor and driving use
- Configuration: Supplied as a handed pair (left and right) for a symmetrical installation
Design & Finish
- Aggressive stance: Extension profile visually widens and lowers the side profile for a more planted, ground-hugging look
- Carbon aesthetic: Directional weave and gloss finish complement the factory B9 body lines for a coordinated, motorsport-grade look
- Factory-style integration: Precision-molded to follow the contours of the factory door sills for clean panel gaps and consistent alignment
Fitment
- 2017–2019 Audi A5 B9 Sportback (4-door)
- 2017–2019 Audi S5 B9 Sportback (4-door)
- Fits the factory door sills only — not compatible with aftermarket side skirt configurations
- Body style: 4-door only — does not fit the 2-door Coupe or Cabriolet
Package Contents
- 2 × carbon fiber side skirt extensions (left and right)
- Installation hardware
Installation
- Surface prep: Thoroughly clean and degrease the lower door sill surface before installation to ensure correct panel seating and secure fitment
- Check orientation: The panels are handed — confirm correct left and right sides before fitting
- Alignment: Dry-fit both panels and check height and fore-aft position match on each side before final fitting
- Professional installation recommended for the best positioning, panel alignment, and finish quality
Before You Install
- Confirm your car is a 4-door B9 A5 or S5 (2017–2019) before ordering — this will not fit the 2-door Coupe or Cabriolet
- Dry-fit both panels first — any difference in height or position between sides is immediately visible along the car
- Side skirts sit low and are exposed to kerbs and driveway ramps — take care when parking
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.