2010-2012 B8 Audi A4/S4 - Carbon Fiber Diffuser - V1

B8 Audi S4 - Carbon Diffuser without LED: In Stock & Ready to Ship!
B8 Audi S4 - Carbon Diffuser with LED: In Stock & Ready to Ship!

Carbon Fiber Diffuser For Audi A4/S4

Enhance the look of your Audi with the B8 Audi A4 S-Line/S4 CAP Carbon Fiber Diffuser V1. Made with high quality carbon fiber, this diffuser will enhance the sporty look of your Audi while still remaining elegant.

Make you B8 Audi A4 S-Line or S4 sedan have a refreshed, more aggressive look in the rear with our hand laid carbon fiber diffuser.

Comes with a functional middle brake light

Please order the correct model carbon diffuser for your vehicle, as the A4 non S-Line has different fitment from the A4 S-Line / S4. 

Wiring Instructions:

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 note that we have revised the design of this diffuser, as the first picture shows the updated design with slight differences and the other pictures show the older design. The new design is a fresher look to make it look more modern.