Audi s4 b8.5 rear diffuser

Oem fitment quick and easy installation!

Benefits of Upgrading the Rear Diffuser on an Audi S4:

1. Aerodynamic Performance: The primary function of a rear diffuser is to manage airflow at the rear of the car. By improving the air's flow underneath the vehicle, the diffuser helps reduce drag, increases stability at high speeds, and enhances downforce, which can be particularly beneficial for performance driving or track days.

2. Aggressive Look: A sportier, more angular rear diffuser can dramatically change the look of your Audi S4. It often features wider, more defined lines, and a sleek design that gives the rear of the car a more aggressive, high-performance appearance. It can also complement other performance modifications like sportier exhaust tips or rear spoilers.

3. Exhaust Integration: Many aftermarket rear diffusers feature cutouts designed for larger or quad exhaust systems, allowing you to pair it with upgraded exhaust tips for a more refined, aggressive exhaust sound and visual appearance.