How to improve the horsepower of a Ford Fiesta?

What are the recommended modifications to increase the horsepower of a Ford Fiesta? I want to increase the performance without sacrificing fuel efficiency.

One way to improve horsepower without sacrificing fuel efficiency is by upgrading the air intake system. A cold air intake or a performance air filter can help increase airflow and give a boost to the car's horsepower.

Investing in a high-performance exhaust system can also improve horsepower. A larger diameter exhaust pipe and free-flowing muffler can help the engine breathe better and increase horsepower.

Aside from hardware modifications, regular maintenance is crucial for keeping your Ford Fiesta's engine running efficiently. Make sure to change the oil and regularly clean or replace air filters to maintain optimal performance.