Audi A4 B9 Avant (2017-2019) Carbon Fiber Diffuser – Performance Diffuser Extension Aluminum These weld-on sliders must be

These weld-on sliders must be installed by a local professional welder

and all have the Perrin tag for a custom look

Prioritizes comfort and ride quality with rubber top mounts

modern digital-style tail light system built for show

Designed for durability under high-heat and high-speed use

Audi A4 B9 Avant (2017-2019) Carbon Fiber Diffuser – Performance Diffuser Extension Aluminum These weld-on sliders must beThe Audi A4 B9 Avant blends performance and practicality but the rear end deserves the same aggressive attention as the front. This carbon fiber rear diffuser extension is designed to enhance the lower bumper profile, adding sharper definition and a more performance inspired finish to your Avant build. Precision engineered using advanced molding techniques, this rear lip follows the factory bumper lines for a clean OEM+ appearance while giving the car