How to increase horsepower in an Audi R8 engine?

I am keen on enhancing the performance of my Audi R8 with a boost in horsepower. What are the best options and upgrades available for increasing the power output of a stock Audi R8 engine?

One of the most effective ways to increase horsepower in an Audi R8 engine is by installing an aftermarket air intake system. This will improve airflow and result in a noticeable performance boost. Jake N.

Another option is to install a performance exhaust system which will not only increase horsepower, but also give your Audi R8 a more aggressive sound. Sam W.

For a significant increase in horsepower, you can consider a stage 2 ECU tune specifically designed for the Audi R8. This will optimize the engine's performance and potentially deliver a notable horsepower increase. Jordan F.