Description
Product Code: RV21.015
Replacement Installation — Original Diffuser Must Be Removed
⚠️ This rear valance is a direct replacement for the factory diffuser. The original part must be fully removed before fitting. Secures in place using pre-installed 3M adhesive tape and the supplied screws for a solid, OEM-tight bond. Professional installation is strongly recommended.
Compatibility
This Audi S3 8Y Rear Valance fits the following models:
- Audi S3 Sedan 8Y (2020–2024)
- Audi A3 S-Line Sedan 8Y (2020–2024)
- Audi S3 Sportback 8Y (2020–2024)
- Audi A3 S-Line Sportback 8Y (2020–2024)
Not compatible with the standard A3 (non S-Line bumper), the RS3, or any 8V generation models. Please confirm your Audi has an S3 or A3 S-Line bumper before ordering.
Audi S3 8Y Rear Valance — Gloss Black Replacement Diffuser for S3 / A3 S-Line (2020–2024)
Give your Audi a sharper, more purposeful rear end with the Plus Auto Style Rear Valance. This Audi S3 8Y Rear Valance is a direct replacement for the factory diffuser, delivering a dramatic visual upgrade with a clean, aggressive design that integrates seamlessly with the S3 and A3 S-Line bumper.
Why Choose This Audi S3 8Y Rear Valance?
- Direct Replacement Fit – Replaces the factory diffuser completely for a clean, integrated finish with no gaps or misalignment.
- Dual Mounting System – Pre-installed 3M adhesive tape combined with supplied screws for a rock-solid, factory-tight bond.
- Quad Fitment – One product that fits S3 Sedan, A3 S-Line Sedan, S3 Sportback, and A3 S-Line Sportback.
- Premium ABS Plastic – UV-resistant and temperature-stable material widely used across the automotive industry. Will not fade, crack, or warp over time.
- Gloss Black Finish – Arrives ready to install, or can be colour-matched and painted to suit your build.
- OEM-Grade Quality – Tested to meet original equipment standards for material thickness, rigidity, and surface finish.
Product Specifications
| Specification | Detail |
| Product Code | RV21.015 |
| Pieces Included | 1 (Rear Valance) |
| Fitment | Audi S3 & A3 S-Line 8Y — Sedan & Sportback (2020–2024) |
| Installation Type | Replacement (original diffuser must be removed) |
| Mounting Type | 3M Adhesive Tape (pre-installed) + Screws |
| Material | ABS Plastic (UV-resistant, temperature-resistant) |
| Colour | Gloss Black |
| Paintable | Yes |
| Product Dimensions | 149 × 30 × 22 cm |
| Shipping Box Dimensions | 160 × 50 × 20 cm |
What’s in the Box?
- 1 × Rear Valance for Audi S3 / A3 S-Line 8Y (with pre-installed 3M tape)
- Mounting Kit (screws and fixings)
- Step-by-step Installation Manual
Installation Guide
This Audi S3 8Y Rear Valance is a replacement product. The original factory diffuser must be fully removed before fitting. Once removed, clean the mounting surface, position the new valance, peel off the 3M adhesive backing, press firmly into place, and secure with the supplied screws. Allow 30–45 minutes for a careful installation. Professional fitting by a qualified workshop is strongly recommended to ensure a perfect, gap-free result.
Upgrade Your S3 or A3 S-Line
Whether you’re driving an S3 or an A3 S-Line, this Audi S3 8Y Rear Valance delivers an aggressive, purposeful rear profile that complements the car’s factory sport styling. Pair it with our front splitters and side skirts for a complete body styling transformation.
Free UK delivery. Same-day dispatch on orders placed before 2 PM.













