How Do You Build Performance In Four Cylinder Engines?
Building a performance four cylinder engine is much more difficult than building a six or eight cylinder engine because of displacement. Bigger engines simply transfer more air through the motor which results in high net horsepower and torque, thus the saying, “No replacement for displacement.” However, it is still possible to obtain decent results with a four cylinder motor with many techniques utilized in the motorsports industry. Install headers and a full catback exhaust system to allow the engine to breathe more freely. The stock exhaust is very restrictive on four cylinder engines, and a lot of horsepower can easily get freed up by simply installing a larger diameter exhaust system. Replace the intake tube and filter with a cold air intake. The stock air intake system is very restrictive; it is designed this way to limit the amount of noise you hear under the hood. A cold air intake will re-route the intake hose to the front bumper where colder, denser air will be directed toward
