What is the best way to increase the horsepower in my Ford Fiesta engine?

I have a Ford Fiesta and I'm looking to increase its power. I've heard about different modifications and performance upgrades, but which ones should I consider and which should I avoid? I don't want to damage my car or spend money on something that won't make a significant difference.

The cheapest and easiest way to increase horsepower in your Ford Fiesta is to install a cold air intake. This will allow your engine to breathe in cooler air, resulting in increased power. You can also consider upgrading to a high-performance exhaust system.

If you're looking for significant power gains, you should consider installing a turbocharger or supercharger. However, these modifications can be costly and may require additional upgrades to support the extra power.

Don't forget about tuning your engine's computer. This can optimize your car's performance and increase horsepower. Just be sure to go to a reputable tuner with experience in Ford cars.

Before making any modifications, it's important to do your research and consult with a professional. Every car is different and what works for one may not work for another. As a general rule, start with basic upgrades and move on to more advanced modifications as needed.