2017-2019 B9 Audi A4/S4 - CAP Carbon Fiber Diffuser - V1

***In Stock & Ready to Ship!***

Carbon Fiber Diffuser For 2017-2019 A4/S4

Enhance the look of your Audi with the CAP Carbon Fiber Diffuser. Made with high quality carbon fiber, this diffuser will enhance the sporty look of your Audi will still remaining elegant.

Quad Exhaust Tip Openings

Please choose the correct model of your vehicle when placing your order, as the B9 Audi A4 non S-Line has different fitment compared to the B9 Audi A4 S-Line & S4. Both diffusers come with quad exhaust tip opening.

Wiring Instructions:

Brake Light Wiring:
Red is the live wire.
Black is the ground wire.
Yellow is the brake light wire.

Install Instructions Disclaimer:

Professional install of this carbon diffuser by someone who has aftermarket product experience is required.
Rear bumper must be removed to install this carbon fiber diffuser properly.

Please carefully choose the right model of your vehicle, as the A4 non S-Line has different fitment compared to the A4 S-line/S4.

PLEASE NOTE. SOME B9 A4 NON S-LINE CARS HAVE THE S-LINE REAR BUMPER. PLEASE CONFIRM PRIOR TO PURCHASING. 

Model Vehicle Fitment: