How can I increase the horsepower of an Audi 80 engine?

I'm looking to upgrade my Audi 80's engine for more power and performance. What are the best ways to increase horsepower without damaging the engine?

The best way to increase horsepower in your Audi 80 is to replace the stock air intake and exhaust system with high-flow options. This will allow more air to flow into the engine, resulting in more power. Also, consider getting a performance chip for your engine.