How do I increase horsepower in my Audi?

I have a Audi A4 and I am looking to increase its horsepower. What are some modifications I can make to achieve this?

One way to increase horsepower in your Audi is by upgrading the air intake system to allow for more air flow. A cold air intake or high-flow air filter can improve power output by a few horsepower.

Another option is to install a performance chip or tuner, which can modify the engine's computer to optimize power and torque. However, make sure to research and choose a reputable chip/tuner to avoid potential negative effects on your car's performance.

A more hands-on approach would be to upgrade the exhaust system with a high-performance exhaust. This can increase horsepower and also give your Audi a more aggressive and sporty sound.