What is the most efficient way to increase horsepower in an Audi A4 2.0T engine?

I recently purchased a 2019 Audi A4 2.0T and am looking to increase its horsepower. What are the best options available and what kind of performance gains can I expect?

The most efficient way to increase horsepower in an Audi A4 2.0T engine is to install a performance air intake system. This will allow for better airflow and increase engine power. As for performance gains, you can expect to see an increase of up to 20 horsepower.