Audi S3 8Y Sedan (2021-2022) Carbon Fiber Side Skirt Extensions – Premium Plus Aero Splitters

The 8Y Audi S3 already has sharp factory body lines — but the right side aero completely transforms the profile. These carbon fiber side skirt extensions are designed specifically for the 2021-2022 S3 Premium Plus Sedan, adding lower visual depth and a more aggressive, performance-driven stance.

Engineered to follow the factory rocker panel contour, these extensions give your S3 a wider, more planted look while maintaining clean OEM+ fitment. Whether you're building a full aero setup or adding subtle carbon accents, this upgrade ties the entire side profile together.

Fitment:

• 2021-2022 Audi S3 8Y Premium Plus Sedan (4-Door)

Features:

• High-quality carbon fiber construction
• Lightweight yet structurally strong design
• Impact-resistant and durable
• Precision-engineered for accurate fitment
• Enhances side profile depth and stance
• Polished surface with UV-protective clear coat

Content:

• 1x Pair Carbon Fiber Side Skirt Extensions (Left & Right)
• Mounting screws included

Specifications:

• Material: Carbon Fiber
• Position: Side Skirts / Lower Rocker Panels
• Approximate Dimensions: 185cm x 20cm x 15cm
• Condition: Brand New

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 exclusively for the S3 8Y sedan platform, these side skirt extensions add the missing lower edge that gives your build a finished, cohesive look. Pair them with a carbon front lip and rear diffuser for a complete, track-inspired setup.

Refine the stance. Sharpen the profile. Build your S3 the right way with K2 Industries.