How can I increase the horsepower in my Nissan 370Z?

I recently purchased a used Nissan 370Z and was wondering what modifications I can make to increase its horsepower. I'm not very knowledgeable about cars so any advice would be greatly appreciated!

You can start by upgrading your air intake and exhaust system. This will allow for better airflow and increase the performance of your engine.

Another option is to install a performance chip or ECU tune. This will optimize your engine's fuel and timing to maximize horsepower.