What can I do to improve engine performance in my Audi A1?

I recently purchased an Audi A1 and I'm looking to increase its power and acceleration. Are there any modifications or tuning options that you would recommend?

Firstly, you could consider installing a performance air filter, which can allow for better air flow and increased horsepower. Secondly, you may want to look into aftermarket exhaust systems, which can improve exhaust flow and add a more aggressive sound. Lastly, a performance ECU upgrade can also significantly boost your engine's power and torque. However, keep in mind that these modifications can be quite pricey and may also affect your car's warranty.