What are the best engine modifications for a Ford Fiesta?

I am a proud owner of a Ford Fiesta and I'm looking to improve its performance. What engine modifications would you recommend for this car make and model?

I would suggest starting with a cold air intake and a performance chip to increase horsepower and torque.

Upgrading to a performance exhaust system can also improve the car's performance and sound.

Don't forget to also replace your spark plugs and wires for better ignition and fuel efficiency.