Upgrade the rear end of your Audi B9 with a more aggressive, performance-inspired look.

Designed for 2017–2020 Audi A4 and S4 B9 models, this rear diffuser adds a lower, wider appearance while maintaining a clean OEM+ style that complements the factory body lines.

Features

• Aggressive sport-inspired rear design
• Available in Gloss Black or Carbon Look finishes
• Lightweight and durable PP construction
• Designed specifically for compatible Audi B9 rear bumpers
• Clean OEM+ appearance
• Direct replacement-style fitment

Different configurations are available for Standard, S-Line and S4 rear bumpers. Please select the option matching your vehicle’s existing bumper.

Finish Options

Gloss Black - Clean, high-gloss finish for a subtle OEM+ appearance.

Carbon Look - Carbon-style finish for a more aggressive performance appearance.

Installation

Professional installation is recommended. Fitment should be confirmed before installation, as Standard, S-Line and S4 rear bumpers use different diffuser configurations.

Please Note

This product is designed for specific bumper configurations. Confirm your vehicle’s year, model and bumper style before ordering.

Exhaust tips and additional accessories are included only when specifically stated in the selected package.