Audi A4 B9 / S4 B9 Sedan (2017-2019) Carbon Fiber Ducktail Trunk Spoiler – R Style Rear Lip

The B9 Audi A4 and S4 sedan carry refined factory styling — but the rear end deserves a sharper finish. This carbon fiber R Style ducktail spoiler adds subtle aggression, improved trunk definition, and a more performance-driven profile without overpowering the clean OEM lines.

Precision 3D engineered and molded for accurate trunk alignment, this rear lip spoiler enhances the natural curve of the decklid while adding the sporty edge your build needs. The gloss carbon finish creates the perfect contrast against factory paint and ties together a full carbon aero setup.

Fitment:

• 2017-2019 Audi A4 B9 Sedan (4-Door)
• 2017-2019 Audi A4 B9 S-Line Sedan (4-Door)
• 2017-2019 Audi S4 B9 Sedan (4-Door)
• Sedan models only (not Avant)

Features:

• Premium carbon fiber construction
• R Style ducktail design
• Precision engineered for accurate trunk fitment
• High-polish finish with protective clear coat
• Lightweight and structurally durable
• Enhances rear profile and sporty character

Content:

• 1x Carbon Fiber Ducktail Trunk Spoiler
• Adhesive tape included for installation

Specifications:

• Material: Carbon Fiber
• Position: Rear Trunk Lid
• Finish: Gloss Carbon
• Condition: Brand New
• Warranty: 1 Year

Shipping Information:

• Processing Time: 2-5 business days for warehouse stock items
• Made-to-Order: Please allow 2-4 weeks for shipping if product requires custom manufacturing

Designed specifically for the B9 sedan platform, this carbon ducktail spoiler gives your A4 or S4 a more aggressive rear silhouette while maintaining a clean OEM+ look. Pair it with a carbon diffuser and front lip to complete your build.

Subtle. Sharp. Purposeful. Elevate your B9 the right way with K2 Industries.