Audi A4 S-Line / S4 B9 Sedan Rear Diffuser with Lamp (2017-2019) | Gloss Black ABS | Plug & Play Installation

Elevate your A4's rear end with performance-inspired styling and integrated lamp functionality—2017-2019 S-Line and S4 models.

Key Features

• Aggressive rear diffuser design sharpens lower rear bumper with aerodynamic performance aesthetic
• Integrated standard light provides enhanced visibility and functional presence
• Premium gloss black ABS plastic—high-impact resistant, UV-stable, maintains pristine finish
• Plug & play installation—simple electrical connection, no drilling or modifications required
• Precision-fitted for 2017-2019 Audi A4 S-Line and S4 B9 Sedan models
• Single piece—authentic integrated appearance with factory alignment
• Complements S-Line and S4 rear bumper styling packages
• Professional finish with performance-engineered design and functional lighting

Perfect For: A4 S-Line and S4 owners (2017-2019) seeking premium visual aggression, aerodynamic performance, and enhanced rear visibility.