The best way to make a truck engine louder is through the installation of a specialized aftermarket exhaust system. While larger, more powerful engines are generally louder than smaller ones, conventional exhaust systems are designed to attenuate that sound and make them quieter.
There are multiple benefits to installing a specialized aftermarket exhaust system on a car or truck. In addition to the louder engine sound, aftermarket exhaust systems provide more room for a fresh mixture of air and fuel within the vehicle engine, allowing it to run more powerfully. Conventional exhaust systems tend to come with mufflers that decrease the volume of engine sound at the expense of performance.
Several kinds of exhaust systems provide benefits for truck owners looking to improve the sound of their engines. Dual side and dual rear exhausts are generally the most popular because the addition of a second exhaust chamber effectively doubles the amount of space that the engine has access to when expelling spent gases. Most cars and trucks come with simple single rear exhaust chambers installed. These exhaust systems are designed for the general market and do not offer the volume or engine performance benefits that aftermarket exhaust systems can provide.