What are the top recommended performance upgrades for the Ford Fiesta ST?

I am looking to improve the overall performance of my Ford Fiesta ST and was wondering what upgrades would be best. I want to increase horsepower, improve handling and have a more aggressive sound. Any suggestions?

Adding a cold air intake and a performance exhaust system are two popular ways to increase horsepower and improve the sound of your Ford Fiesta ST. Additionally, investing in a high performance suspension kit can enhance handling and give your car a sportier feel.

Another option is to upgrade your engine's computer with a performance chip. This can provide a significant increase in horsepower and torque, as well as improve fuel efficiency. Make sure to do your research and choose a reputable brand.