What are the best modifications for the Ford Fiesta to improve performance?

I recently purchased a Ford Fiesta and I am looking to make some modifications to improve its performance. Can anyone recommend which modifications would be the most beneficial and where I can find them?

I would suggest starting with a cold air intake and a performance exhaust. These will improve air flow and allow your engine to breathe better, resulting in a noticeable increase in horsepower.

Another good modification that can make a big difference is a performance chip or tuner. These can optimize your engine's performance and increase power and torque throughout the rev range.

Don't forget about suspension upgrades! Stiffer springs and sway bars can improve handling and reduce body roll, making your Fiesta more fun to drive on twisty roads.