How to increase my car's horsepower?

I have a BMW 3 Series and I want to increase its horsepower. What are some reliable ways to do so?

One of the best ways to increase your car's horsepower is to install a performance chip. This will optimize your engine's settings and give you a noticeable increase in power and torque.

Another option is to install a cold air intake. This will improve your car's airflow and lead to a slight boost in horsepower.

Getting a performance exhaust system can also help increase your car's horsepower. This will improve your car's exhaust flow and give you a deeper, more powerful sound.