The first performance modification you should make to the Audi S4 3.0T needs to be the Injen SP Air Intake. By upgrading the air intake, you are allowing more air to flow into the engine, making the engine on produce more power. In fact, you will see power gains of 12 hp and 10 lb/ft torque to the wheels after installing the Injen SP Air Intake on your S4. By replacing the factory air intake system with the less restrictive bends and cone air filter of the Injen SP Air Intake, the engine will work less, increasing power and improving the gas mileage. The Injen SP Air Intake is available in a polished silver and laser black finish.

Features:

- Removes restrictive bends and airbox of factory system.

- Easy to install performance modification.

- Injen SP intakes are World's first tuned intake system.

- Improves gas mileage.

- Includes all hardware and instructions for installation.