How to Increase the Horsepower of My Ford Focus?

I have a Ford Focus and I want to increase its horsepower. What are some ways to do this and how much of an impact will it have on my car's performance?

One of the easiest ways to increase horsepower in your Ford Focus is by adding a cold air intake. This can increase power by 5-10 horsepower and improve engine responsiveness.

Upgrading your exhaust system can also give your Ford Focus a boost in horsepower, as well as improve the overall sound of your car.

Optimizing your engine's air flow and fuel delivery with a performance tuner can also provide significant increases in horsepower.