How Can I Add More Horsepower To My 4 Cylinder?

How Can I Add More Horsepower To My 4 Cylinder? Install a turbocharger or supercharger on your motor. The turbocharger and supercharger are classified under the realm of forced induction and are by far the easiest, quickest and cheapest method of increasing horsepower and torque out of a four cylinder engine. How do you squeeze